Inventors of Calhoun County 1880-2019

Patents have been granted to Calhoun County residents from the following towns:
Farnhamville, Jolley, Knierim, Lake City, Lavinia, Lohrville, Lytton, Manson, Pomeroy, Richards, Rinard, Rockwell City, Somers, and Yetter.

For IMAGES and text of patents, go to How to view patents on the USPTO database.

patent for a milk cooler patent of a cultivator patent of an automatic watering trough

MILK COOLER
Edward Price
Pomeroy, Iowa
June 22, 1880
Patent #229180

CULTIVATOR
William H. Hunter
Farnhamville, Iowa
Dec 29, 1885
Patent #333227

AUTOMATIC HOG WATER TROUGH
Hiram E. Purdy
Rockwell City, Iowa
Oct 10, 1893
Patent #506253


NAME RESIDENCE TITLE OF INVENTION DATE GRANTED PATENT #
Adams, John F. Lohrville fastening device for storm sashes Jan 17, 1911 982169
Adams, Ray P. Lohrville valve cap for pneumatic tires July 6, 1920 1346073
Aden, Henry G. Pomeroy trace support Nov 27, 1900 662554
Albinger, Gail H. Lytton ground air gun mounting support May 26, 1964 3134446
Baker, Elmer S. Jolley supplemental plowshare Apr 2, 1929 1707426
Baker, Ernest P. Manson dispensing apparatus July 18, 1922 1422913
Bangston, Cecil W. Rockwell City safety locking switch for automobiles May 30, 1933 1911739
Barber, Jesse R. Lavinia hay and shock loader Apr 17, 1945 2373804
Baskerville, Gregory Eugene Jolley seed cart with loading/unloading conveyor system Mar 30, 1999 5888044
Beam, Calvin L. Rockwell City bracket for shade rollers May 15, 1906 820693
Bennington, Russell L. Lake City releasing vice for poultry house doors Nov 29, 1921 1398829
Bigelow, William Rockwell City sand auger Oct 22, 1957 2810553
Blankenburg, Henry Lohrville wire fence gate Sep 13, 1892 482334
Blankenburg, Henry Lohrville hand nailing implement June 25, 1901 677155
Bowie, Moraine C. Lake City calf fetal extractor May 7, 1957 2791219
Bradley, Carl R. Farnhamville combination barbeque smoker leaf burner Aug 27, 1968 3398733
Brainard, Michael A. Manson fluid delivery system Aug 6, 2013 8499782
Brockman, Charles A. Jolley wrench June 22, 1915 1143746
Brooks, Roswell F. Lake City incubator heater Jan 7, 1908 876142
Brooks, Roswell F. Lake City heating appliance for brooders July 7, 1908 892396
Brown, Arthur Lake City work holding device June 17, 1930 1764242
Brown, Arthur Lake City work holding device Mar 3, 1931 1794397
Brugger, Frederick R. Lake City street sweeper May 26, 1914 1097911
Brugger, Frederick R. Lake City steam engine governor Mar 16, 1915 1132068
Brugger, Frederick R. Yetter dust collector mechanism for street sweepers Apr 27, 1915 1137184
Bruner, Abrom Rockwell City quickly applied nonskid device Oct 6, 1931 1826123
Brunner, Abrom D. Rockwell City plow Aug 25, 1925 1551464
Bunker, Fredrick Illian Lake City coin sorting machine Aug 19, 1958 2848004
Bunker, Richard Lindsay Lake City coin sorting machine Aug 19, 1958 2848004
Burns, Jess L. Farnhamville portable stalk guard for binders Jan 21, 1919 1291760
Burns, Jesse L. Farnhamville clutch spring compressor Dec 10, 1918 1286933
Buswell, William H. Manson rabbet plane Oct 26, 1886 351689
Carson, Leonidas W. Manson hay stacker Jan 17, 1882 252427
Carter, Louis P. Lake City adjustable automatic tile machine July 14, 1908 893530
Christensen, Lloyd A. Lohrville vibrating massage machine June 17, 1958 D183038
Christensen, Lloyd A. Lohrville vibrating massage machine Nov 18, 1958 2860630
Christensen, Lowell C. Lohrville vibrating massage machine June 17, 1958 D183038
Christensen, Lowell C. Lohrville vibrating massage machine Nov 18, 1958 2860630
Christensen, Weston W. Lohrville vibrating massage machine June 17, 1958 D183038
Christensen, Weston W. Lohrville collapsible dwelling unit Jan 7, 1969 3420567
Christensen, Weston W. Lohrville vibrating massage machine Nov 18, 1958 2860630
Christensen, William A. Lohrville vibrating massage machine June 17, 1958 D183038
Clark, Gordon F. Lake City two way travel drawer slide Jan 15, 1980 4183596
Clements, James Lake City corn harvesting machine June 14, 1892 477169
Clements, John Lake City corn harvesting machine June 14, 1892 477169
Clover, Eliot K. Lohrville checkrein holder Dec 6, 1921 1399463
Conroy, Thomas D. Jolley wrench June 22, 1915 1143746
Curry, William H. Lake City ground connector Sep 21, 1915 1154099
Davis, Joseph B. Lohrville animal teeth cutter Aug 2, 1966 3263331
Dewey, Charles A. Rockwell City seed corn rack and germinator Jan 15, 1907 841128
Dewey, Charles A. Rockwell City seed corn rack Aug 3, 1909 929922
Dinka, Kirsten I. Farnhamville method of excystation of sporocyts Sep 27, 2005 6949375
Ditzenberger, Doyle Rockwell City automatic sizing device Mar 8, 1983 4376044
Doyen, Marie Manson measuring attachment for receptacles Mar 24, 1931 1798073
Dunaway, Guy I. Lytton wagon end gate June 18, 1918 1270026
Eby, Henry C. Jolley gun sight Feb 23, 1904 752962
Eby, Henry C. Jolley flue Jan 24, 1905 780797
Eby, Henry C. Jolley belt shifter July 25, 1905 785441
Eby, Henry C. Jolley lock whip socket Dec 24, 1907 874591
Elliott, James F. Manson self regulating water trough Mar 30, 1897 579821
Elliott, James F. Manson toaster Sep 21, 1897 590478
Falk, Leonard Manson feed cooker Sep 11, 1883 284861
Farnell, Ralph W. Rockwell City ground air gun mounting support May 26, 1964 3134446
Fecht, John B. Rockwell City piston ring Jan 22, 1924 1481701
Fields, Joseph C. Farnhamville mop head fixation device and method Feb 24, 2015 8959699
Fields, Joseph C. Farnhamville mop head fixation device and method June 18, 2013 8464391
Fitzgerald, Christopher T. Pomeroy multi-function closure for a liquid containment tank Dec 12, 2017 9840367
Fitzgerald, Christopher T. Pomeroy seed cart Jan 10, 2017 9539927
Fitzgerald, Christopher T. Pomeroy liquid mobile tank Oct 27, 2015 D741981
Fitzgerald, Christopher T. Pomeroy seed cart Jan 13, 2015 8931995
Freese, Eldon D. Manson ball hitting training device Dec 28, 1993 5273277
Fulkerson, Charles C. Lake City vacuum caponizing instrument June 12, 1945 2378137
Gabriel, Frank B. Lake City chimney corner guide June 22, 1937 2084798
Gentry, Dwaine G. Manson closure means for poultry nests Jan 19, 1965 3166047
Gentry, Dwaine G. Manson cleat cleaner Mar 23, 1965 D200625
Gist, Lane Lake City automatic check row corn planter Nov 16, 1897 593647
Gist, Lane Lake City watering trough Aug 20, 1901 680772
Gleason, Kenneth R. Rockwell City music holder for drum Sep 30, 1980 4225107
Gommels, Elmer Manson calf weaner Feb 24, 1942 2274406
Graeber, Alfred P. Lytton wagon end gate June 18, 1918 1270026
Graeber, Charles F. Lytton rat trap Aug 9, 1904 767220
Graeber, Charles F. Lytton wagon end gate June 18, 1918 1270026
Greene, Roger F. Lake City two way travel drawer slide Jan 15, 1980 4183596
Habbena, Carl C. Rockwell City tray for golf carts Apr 7, 1964 3128021
Hall, Charles S. Lohrville implement for handling hollow bricks Apr 9, 1907 849897
Haneklaus, John H. Pomeroy ice tray Feb 1, 1927 1616043
Haney, Crandall R. Manson cigarette holder Aug 2, 1921 1386494
Hansmann, William Manson sawing machine Nov 27, 1900 662790
Harriott, Bernard L. Lake City registering device Dec 18, 1945 2391309
Harter, Byron E. Farnhamville self-locking gaff Aug 6, 1940 2210169
Harting, Homer L. Rockwell City combine header carrier July 18, 1950 2515556
Hecht, Fred J. Lytton end gate Feb 23, 1926 1574031
Heise, Fred H. Manson cupola Aug 4, 1914 1106215
Herbert, Edward C. Manson attachment for horse hay rakes Feb 12, 1901 667841
Higbe, James M. Manson gate June 4, 1907 855948
Higbe, James M. Manson cut off valve gear Apr 3, 1883 275337
Hildenbrand, Glenn Lohrville automatic packaging and vending machine Aug 18, 1936 2051344
Hildenbrand, Glenn Lohrville automatic corn popping machine Jan 14, 1936 2027698
Hildenbrand, Glenn Lohrville vending machine Feb 14, 1933 1897072
Hildenbrand, Glenn Lohrville folding carton Aug 13, 1935 2011232
Hildenbrand, Glenn W. Lohrville coin chute for vending machines Nov 7, 1933 1933752
Hildenbrand, Glenn W. Lohrville vending machine May 28, 1935 2002753
Hinricks, Henry A. Pomeroy latch Sep 28, 1937 2094547
Hoeregott, Carl M. Jolley lock whip socket Dec 24, 1907 874591
Hoeregott, Carl M. Jolley belt shifter July 25, 1905 795441
Hoeregott, Carl M. Jolley flue Jan 24, 1905 780797
Hopkins, Aaron Lake City nut wrench Jan 4, 1898 596777
Horn, Frederic G. Rockwell City smoking pipe reamer July 22, 1969 3456654
Hotchkiss, Porter S. Lake City electric billiard register Aug 2, 1904 766353
Hunefeld, Mark Lake City Lifting jack Sep 4, 1906 830479
Hunter, William H. Farnhamville cultivator Dec 29, 1885 333227
Hunter, William H. Farnhamville fish hook July 12, 1892 478864
Iler, Stephen Jolley attachment for planters, plows, & c. May 3, 1904 758969
Jackson, Forest Yetter toothpick holder Jan 16, 1917 1212357
Janssen, Gerhard R. Manson radiator cover operating means Jan 24, 1922 1404527
Johnson, Arthur E. Rockwell City novelty savings bank Feb 3, 1931 1790959
Johnson, George A. Pomeroy surgical instrument Mar 27, 1928 1663761
Johnson, Louie Jolley operating portable stacker Aug 28, 1934 1971413
Johnson, Victor Pomeroy controlling attachment for cultivators Aug 13, 1929 1724203
June, John Manson feed cooker Sep 11, 1883 284861
Jurgensen, Paul A. Farnhamville automatic regulator for windmills Jan 31, 1905 781075
Kalsow, Frederick W. Manson gate hinge July 28, 1908 894442
Kalsow, Fredrick W. Manson card vending machine July 27, 1909 928979
Khommanyvong, Lee Rockwell City layered structural fire glove May 23, 2017 9655393
Khommanyvong, Lee Rockwell City glove Nov 3, 2015 D742600
Khommanyvong, Lee Rockwell City structural fire glove July 14, 2015 9079050
Khommanyvong, Lee Rockwell City protective gloves Mar 27, 2012 D656684
Khommanyvong, Lee Rockwell City protective gloves Mar 1, 2011 D633655
Khommanyvong, Lee Rockwell City protective gloves June 1, 2010 D617053
Kleemeier, Edward C. Rockwell City sand auger Oct 22, 1957 2810553
Knudson, Lewis N. Somers attachment for terret rings May 26, 1914 1097805
Kreft, Walter W. Yetter stock watering device July 4, 1939 2164716
Kroska, Herman Pomeroy comb cleaner and holder Jan 14, 1919 1291028
Ladd, William M. Lake City detachable cuff Dec 30, 1919 1326514
Lange, Marvin C. Rockwell City wheel ornament Nov 7, 1961 3007743
Larson, Leonard A. Farnhamville ceiling joint sander July 10, 1956 2753669
Laub, Bert C. Lake City Lifting jack Sep 4, 1906 830479
Laub, Henry C. Rockwell City tool for compressing or spreading split rings Feb 18, 1941 2232247
Layman, Loren J. Rockwell City button hooks for arm and hand amputees Nov 17, 1959 2912733
Lighty, Herschel J. Richards oil burner Aug 12, 1930 1772750
Lilly, Edward B. Farnhamville pipe wrench Feb 18, 1896 554885
Losee, Asa B. Lake City display rack Feb 5, 1907 843220
Losee, Ezra A. Lake City holder Nov 15, 1898 614116
Losee, Ezra A. Lake City feed trough Mar 21, 1899 621355
Losee, Ezra A. Lake City automatic stock waterer Feb 7, 1899 619081
Losee, Ezra A. Lake City holder Nov 15, 1898 614116
Losee, Ezra A. Lake City poultry fountain Jan 1, 1901 664959
Losee, Ezra A. Lake City piano stool Mar 21, 1899 621354
Losee, Ezra A. Lake City brush holder June 1, 1897 583576
Low, Harold A. Lake City molding flask for making fence posts Jan 31, 1905 781611
Low, Harold A. Lake City transformable mold for building blocks Mar 6, 1906 814657
Low, Harold A. Lake City adjustable automatic tile machine July 14, 1908 893530
Luse, David N. Rockwell City check row stake Oct 13, 1914 1113800
Mack, John L. Jolley operating portable stacker Aug 28, 1934 1971413
Marten, Ben G. Manson rod and reel protector Nov 15, 1955 2723482
Martens, Vincent G. Rockwell City combined castable bobber and automatic sounding device Nov 23, 1954 2694878
Martens, Vincent G. Rockwell City bobber Aug 19, 1952 2607154
McCord, Robert L. Lake City combined cot and bath tub June 2, 1908 889324
McCulloch, John J. Pomeroy latch Sep 28, 1937 2094547
McCulloch, John J. Pomeroy latch June 3, 1924 1496551
McCulloch, John J. Pomeroy end gate Aug 9, 1921 1386882
McCullock, Prudence Pomeroy washing machine Nov 29, 1887 374128
Merrill, Rex R. Rockwell City pistol July 15, 1980 D255917
Mighell, Louis J. Lake City grain door for cars June 19, 1906 823735
Miller, Albert Knierim emergency propeller June 3, 1924 1496723
Miller, Charles L. Pomeroy carburetor Sep 8, 1925 1552866
Mitchell, Charles V. Pomeroy hear rest June 9, 1903 730488
Moeller, Brian Lohrville variable width field implement Oct 12, 1999 5964167
Moeller, Brian J. Somers pig holding device Aug 10, 1982 4343266
Moss, George R. Lohrville barn and garage door latch Dec 11, 1928 1694553
Mutti, Jacob C. Manson band brake May 23, 1916 1183899
Nicholson, Alonzo L. Rockwell City end gate Apr 22, 1919 1301299
Nicholson, Alonzo L. Rockwell City wrench and clamp combined Mar 22, 1904 755578
Nicholson, Alonzo L. Rockwell City wagon end gate Apr 22, 1919 1301300
Niles, Aaron Manson ironing machine May 18, 1886 342221
Nolin, Karl W. Jr. Lake City hydraulic power means for conveyors and the like with automatic shufoff means Dec 17, 1968 3416676
Nowels, David C. Rockwell City lacing string fastener Apr 5, 1904 756690
Obrink, Per E. Pomeroy corn planter Oct 24, 1899 635342
Olson, Elmer Pomeroy beat oscillator May 5, 1942 2281709
Osborn, Joseph W. Lake City towing device Dec 4, 1923 1476638
Owen, LeClaire J. Rockwell City antirooting device for animals Aug 24, 1909 931794
Owens, Benjamin F. Rockwell City grain door for cars Feb 2, 1909 911521
Owens, Benjamin F. Rockwell City grain door for cars Mar 5, 1912 1019274
Owens, Benjamin F. Rockwell City inspection device for grain cars May 27, 1913 1063135
Owens, Benjamin F. Rockwell City inspection device for grain cars Nov 18, 1913 1078948
Owens, Christopher W. Lake City duplex gravity gate latch Feb 18, 1908 879408
Packer, Marion E. Rockwell City metallic tie and rail chair Oct 15, 1912 1041337
Parks, Robert D. Lohrville folding carton Aug 13, 1935 2011232
Parks, Robert D. Lohrville automatic packaging and vending machine Aug 18, 1936 2051344
Parks, Robert D. Lohrville vending machine May 28, 1935 2002753
Parks, Robert D. Lohrville paper cutting and vending machine Apr 23, 1929 1710001
Parks, Robert D. Lohrville barn and garage door latch Dec 11, 1928 1694553
Parks, Robert D. Lohrville pop corn kettle Nov 20, 1923 1475081
Parks, Robert D. Lohrville corn popper June 5, 1923 1457854
Parks, Robert D. Lohrville coin chute for vending machines Nov 7, 1933 1933752
Parks, Robert D. Lohrville vending machine Feb 14, 1933 1897072
Parks, Robert D. Lohrville automatic corn popping machine Jan 14, 1936 2027698
Patterson, Randy W. Rockwell City dice game box Apr 11, 1995 D357284
Pedersen, Scott Rockwell City hydraulic pivot arm positioning assembly May 30, 2017 9663162
Pedersen, Scott Rockwell City methods for paving a trail between obstacles May 2, 2017 9637872
Pedersen, Scott Rockwell City adjustable width trail paver Feb 14, 2017 9567715
Pedersen, Scott Rockwell City adjustable width trail paver Aug 30, 2016 9428869
Pelmulder, Charles Rockwell City washing-machine Sep 2, 1884 304554
Peters, John W. Manson method for reducing incidence of periparturient disorders in cows Aug 24, 1982 4346077
Powell, Joseph W. Farnhamville detachable deck for marine vessels Nov 18, 1902 713797
Powers, John C. Rockwell City corn planter May 11, 1920 1339576
Prange, August C.T. Pomeroy pump motor support July 19, 1887 366686
Preston, Charles E. Lake City combined paper weight and calendar support Aug 18, 1914 1107349
Price, Edward Pomeroy milk cooler June 22, 1880 229180
Purdy, Hiram E. Rockwell City corn harvester Jan 10, 1911 981223
Purdy, Hiram E. Rockwell City husking rollers Oct 19, 1909 937715
Purdy, Hiram E. Rockwell City automatick hog watering trough Oct 10, 1893 506253
Purdy, Hiram E. Rockwell City corn harvester Jan 10, 1911 981224
Quist, Ruben Lohrville projectile June 19, 1917 1230217
Ramige, William F. Rockwell City trace carrier June 26, 1923 1460271
Ramige, William F. Rockwell City trace carrier Oct 7, 1924 1511174
Renner, Jacob Rockwell City frying device Feb 23, 1909 913431
Renner, Jacob Rockwell City holder for ice cream cones Nov 19, 1912 1044911
Renner, Jacob Rockwell City device for use in transferring ice cream cans Oct 2, 1906 832503
Resch, Anton Rockwell City foldable wheel assembly for golf bag carts Jan 24, 1956 2732218
Resch, Tony Rockwell City article of manufacture July 11, 1933 1918135
Resch, Tony Rockwell City closure packing July 11, 1933 1918134
Reynolds, Cecil A. Rockwell City package opening device Mar 3, 1942 2275091
Reynoldson, George W. Manson screen wire rack July 31, 1900 654671
Richardson, Clarence Lake City stake or post driver Apr 15, 1952 2593186
Richardson, Curt D. Lake City machinery cooling system Apr 10, 2001 6212895
Richardson, Curt D. Lake City precooked, machine formed, non pressed food patty Jan 27, 2009 D585179
Richardson, Curt D. Lake City lost motion cylinder Oct 2, 2001 6295917
Ringgenberg, Edward A. Lytton pumping apparatus May 23, 1939 2159179
Rohlfsen, William G. Manson method for cultivation of monarda May 12, 2015 9029610
Rollins, Fred H. Lake City corn harvesting machine June 14, 1892 477169
Rosendahl, Martin U. Knierim tractor operated wire winding and unwinding reel May 9, 1950 2507272
Salisbury, William R. Lake City washing machine Sep 8, 1891 459311
Salz, Henry W. Manson agricultural boiler Oct 29, 1889 414088
Sanburg, Larry E. Manson boat supported duck blind June 9, 1897 4671203
Sanches, Charles D. Manson safety device to actuate railroad car air brake Dec 7, 1982 4362338
Schade, Virgil A. Rockwell City pipe cutter having a raker-type cutter Nov 5, 1968 3408738
Schlachter, Carl Rockwell City roofing tile Dec 15, 1903 746747
Schlachter, Carl A. Manson wardrobe Sep 28, 1915 1154659
Schlachter, Carl A. Rockwell City lock for revolving doors July 3, 1934 1965005
Schlachter, Carl A. Rockwell City power transmission device Mar 10, 1908 881444
Schlachter, Carl A. Rockwell City tire armor Apr 16, 1907 850321
Schlachter, Carl A. Rockwell City hydraulic clutch Mar 15, 1910 952217
Schlachter, Fred W. Rockwell City parachute quick release coupling Jan 26, 1954 2667376
Schon, Heinrich W. Pomeroy corn shock binder June 24, 1930 1767556
Schroeder, Albert C. Pomeroy fastening for cars doors Aug 11, 1908 895690
Scroggin, Charles Lake City threshing machine Aug 17, 1920 1350085
Shain, Milo G. Lohrville barber's shears Dec 27, 1898 616639
Sherman, Norman W. Lake City oil burner Sep 1, 1914 1109474
Shriver, Ray R. Rinard electrical heater Dec 18, 1923 1477982
Smith, Cyrus M. Lake City apparatus for boring and tubing wells Nov 3, 1896 570513
Smith, Samuel A. Rockwell City can opener Dec 20, 1904 778112
Snavely, Frank B. Lake City check row attachment for corn planters May 21, 1918 1267006
Spurgeon, John L. Lake City lawn mower cutting reel sharpener June 24, 1924 1498584
Squaires, Henry A. Rockwell City label plate attachment for label pasting machines Mar 17, 1925 1530144
Stadtmueller, Max F. Pomeroy compensating journal bearing June 21, 1904 763077
Stadtmueller, Max F.E. Pomeroy butter worker Dec 17, 1889 417597
Stadtmuller, Max F. Pomeroy cream cooler and aerator Oct 17, 1905 801929
Stadtmuller, Max F. Pomeroy combined churn and butter worker Dec 18, 1906 838661
Stadtmuller, Max F. Pomeroy combined churn and butter worker June 18, 1907 857119
Stadtmuller, Max F. Pomeroy machine for cutting and bending metal strips Sep 29, 1903 740054
Stadtmuller, Max F. Pomeroy window putty protector Sep 29, 1903 740055
Stadtmuller, Max F. Pomeroy attached swinging strawy stacker June 19, 1900 652148
Stadtmuller, Max F. Pomeroy union Jan 2, 1900 640595
Stadtmuller, Max F. Pomeroy head rest June 9, 1903 730488
Stadtmuller, Max F. Pomeroy journal bearing May 17, 1904 760033
Stadtmuller, Max F. Pomeroy churn and butter worker Apr 20, 1897 581182
Stadtmuller, Max F. Pomeroy device for attaching hay loaders to wagons Aug 21, 1894 524960
Stafford, Hosea B. Manson agricultural boiler Oct 29, 1889 414088
Stanfield, George A. Lake City threshing machine Aug 17, 1920 1350085
Stell, Thomas J. Rockwell City vehicle garage warning system Apr 10, 2018 9937906
Stonebraker, Beaumont E. Rockwell City arithmometer Nov 19, 1895 550030
Stringer, Charles E. Farnhamville tongue for trailer vehicles Jan 2, 1945 2366294
Stringer, Charles E. Farnhamville coupler Jan 2, 1945 2366295
Teyen, Alfred Pomeroy poultry spraying device Dec 25, 1928 1696460
Teyen, Peter Pomeroy poultry spraying device Dec 25, 1928 1696460
Thoel, Delmar G. Manson end gate latch and hinge Mar 6, 1962 3023451
Townsend, Courtland H. Lake City chimney stopper June 6, 1905 791514
Troon, Charles L. Pomeroy car door fastener Mar 30, 1909 916804
Tyson, William Manson washing machine Oct 13, 1885 328441
Ulvestad, Albert J. Lake City check row attachment for corn planters May 21, 1918 1267006
Van Wegan, Sidney D. Rockwell City finishing plastic masses Mar 31, 1925 1532006
Voelkerding, Frank J. Lake City gas leak detection device Aug 3, 1965 3198265
Voelkerding, Frank J. Lake City gas or liquid line leak detector probe Apr 17, 1956 2742266
Voelkerding, Frank J. Lake City support device Nov 15, 1966 3285554
Voelkerding, Frank J. Lake City adjustable golf tee and sight Oct 22, 1968 3406977
Wadleigh, Theodore Knierim gate fastener Aug 20, 1912 1036040
Wadleigh, Theodore Somers conicovate grinder burr Dec 6, 1927 1651425
Walters, Horace Center Township wheel scraping attachment for tractors Oct 27, 1931 1829172
Warbis, Joseph S. Rinard automobile direction signal Dec 27, 1927 1654060
Wessel, Lawrence V. Manson hog house Jan 21, 1930 1744692
Widlund, Harry Manson temporary bracket for shingling roofs Oct 6, 1914 1112876
Wiemers, Frank E. Manson snap bean stringer Apr 3, 1951 2547352
Wier, David K. Lake City wagon end gate and shoveling board Apr 29, 1902 698604
Wiese, John D. Manson automatic door guide Oct 8, 1912 1040829
Wiese, John D. Manson drag attachment for disk cultivators or harros Apr 26, 1927 1626572
Wilkinson, George W. Pomeroy printer's chase and form lock May 16, 1899 625005
Wilson, John J. Farnhamville clutch spring compressor Dec 10, 1918 1286933
Wolfe, Dana Manson safety harness June 15, 2010 7735150
Woods, Joshua M. Farnhamville methods, systems and computer program products for processing cells in a spreadsheet June 2, 2015 9047266
Woods, Joshua M. Farnhamville methods, system and computer program products for facilitating visualization of interrelationships in a spreadsheet June 3, 2014 8745483
Woods, Joshua M. Farnhamville virtual web service Jan 29, 2013 8364837
Woods, Joshua M. Farnhamville methods, systems and computer program products for spreadsheet-based automatic management of computer systems Sep 25, 2012 8276150

Sources:
Iowa Patent Search, at the Davenport Public Library, Davenport, Iowa
United States Patent & Trademark Office (USPTO), Patent Full-Text and Image Database