| Surname | Given Name | Residence | Classification of Invention | Patent Number | Patent Granted |
| Adkison | Frank L. | Columbus Junction, IA | Method and apparatus for removing meat from poultry legs and thighs | US5277649A | 11 Jan 1994 |
| Brown | Melvin H. | Morning Sun, IA | Process for production of aluminum and alkaline earth metal by carbothermic production of alkaline earth metal aluminide and reduction of aluminum and alkaline earth metal in electrolytic reduction cell | US4724054A | 9 Feb 1988 |
| Brown | Melvin H. | Morning Sun, IA | Process for reduction of metal compounds by reaction with alkaline earth metal aluminide | US4735654A | 5 Apr 1988 |
| Brown | Melvin H. | Morning Sun, IA | Process for production of alkaline earth metal by carbothermic production of alkaline earth metal aluminide and stripping of alkaline earth metal from alkaline earth metal aluminide with nitrogen stripping agent | US4765831A | 23 Aug 1988 |
| Brown | Melvin H. | Morning Sun, IA | Process for carbothermic production of calcium aluminide using slag containing calcium aluminate | US4765832A | 23 Aug 1988 |
| Brown | Melvin H. | Morning Sun, IA | Process for production of aluminum by carbothermic production of an alkaline earth metal aluminide such as calcium aluminide and recycling of reactant byproducts | US4769067A | 6 Sep 1988 |
| Brown | Melvin H. | Morning Sun, IA | Process for production of aluminum by carbothermic production of alkaline earth metal aluminide and stripping of aluminum from alkaline earth metal aluminide with halide stripping agent | US4769069A | 6 Sep 1988 |
| Brown | Melvin H. | Morning Sun, IA | Process for production of aluminum by carbothermic production of alkaline earth metal aluminide and stripping of aluminum from alkaline earth metal aluminide with sulfurous stripping agent | US4769068A | 6 Sep 1988 |
| Brown | Melvin H. | Morning Sun, IA | Process for carbothermic production of calcium aluminide using calcium carbide | US4770696A | 13 Sep 1988 |
| Brown | Melvin H. | Morning Sun, IA | Process for carbothermic production of alkaline earth metal aluminide and recovery of same | US4812168A | 14 Mar 1989 |
| Brown | Melvin H. | Morning Sun, IA | Aluminum alloy product having improved combinations of strength and corrosion resistance properties and method for producing the same | US4863528A | 5 Sp 1989 |
| Brown | Melvin H. | Morning Sun, IA | Method and apparatus for producing fluid fLow | US5316568A | 31 May 1994 |
| Butler | Robert W. | Letts, IA | Control system for rider vehicles | US4716980A | 5 Jan 1988 |
| Carlson | George E. | Oakville, IA | Drying distilling and calcining machine | US3309074A | 14 Mar 1967 |
| Carroll | Mark | Columbus Junction, IA | Wall panel system | US6964138A | 15 Nov 2005 |
| Coil | Robert | Columbus Junction, IA | Composite hutch door | US8528280B2 | 10 Sep 2013 |
| Davis | Keith L. | Wapello, IA | Hinge bracket for a cabinet door | US5749125A | 12 May 1998 |
| Dean | Floyd E. | Morning Sun, IA | Axle alignment machine | US4055899A | 1 Nov 1977 |
| Egel | Kenneth D. | Letts, IA | Combined thermometer and radiator cap | US5741069A | 21 Apr 1998 |
| Egel | Kent D. | Letts, IA | Sanitary ketchup dispenser | US5894957A | 20 Apr 1999 |
| Fickle | J. Clark | Wapello, IA | Crop harvesting machine | US3797207A | 19 Mar 1974 |
| Gerth | Lewis W. | Wapello, IA | Metallic railway crossing | US1758935A | 20 May 1930 |
| Gerth | Lewis W. | Wapello, IA | Railway crossing | US1793779A | 24 Feb 1931 |
| Giovanazzi | John | Grandview, IA | Jack-o-stand | USD591530A | 5 Jun 2009 |
| Grimm | Curt L. | Wapello, IA | Clothes drying apparatus and method of drying clothes | US6868621A | 22 Mar 2005 |
| Grimm | Kent L. | Wapello, IA | clothes drying apparatus and method of drying clothes | US6868621A | 22 Mar 2005 |
| Grimm | Curt | Wapello, IA | Concrete products locking cage spacer | US9745752B2 | 29 Aug 2017 |
| Hamilton | Lori | Morning Sun, IA | Tray | US8678136B1 | 25 Mar 2014 |
| Hammons | Richard N. | Columbus Junction, IA | Fishing jigger | US4748764A | 7 Jun 1988 |
| Hitchcock | Richard R. | Letts, IA | Adhesive | US8801848B2 | 12 Aug 2014 |
| Hook | Albert A. | Wapello, IA | Grain storage bin ventilator | US2797632A | 2 Jul 1957 |
| Hostetter | James A. | Morning Sun, IA | Two-tube continuous sand muller | US4322168A | 30 Mar 1982 |
| Jamison | George C. | Wapello, IA | Casket positioning device | US2135898A | 8 Nov 1938 |
| Lanz | Orrin R. | Wapello, IA | Enclosure system for an antenna | US9000999B2 | 7 Apr 2015 |
| Lewis | Delmar D. | Letts, IA | Column climbing device | US4368801A | 18 Jan 1983 |
| Lewis | Delmar D. | Letts, IA | Cutter for cylindrical locks | US4432677A | 21 Feb 1984 |
| Lewis | Donald E. | Letts, IA | Auxiliary sealing system for fluid mixers | US4556222A | 3 Dec 1985 |
| Lindeen | Steve V. | Oakville, IA | Wall panel system | US7958683B2 | 14 Jun 2011 |
| Lolling | Chad C. | Wapello, IA | Simplified wall panel | US6775953A | 17 Aug 2004 |
| Lowe | Brian | Columbus Junction, IA | Machine for forming a container | US9701088B2 | 11 Jul 2017 |
| McCann | Dennis | Letts, IA | Two-tube continuous sand muller | US4322168A | 30 Mar 1982 |
| McCollum | Gail Edwin | Oakville, IA | Low profile television antenna | US6922179A | 27 Jul 2005 |
| McCollum | Gail Edwin | Oakville, IA | Low profile television antenna | US7113147A | 26 Sep 2006 |
| McCollum | Gail | Wapello, IA | Mobile television antenna with integrated UHF digital booster | US8242968B2 | 14 Aug 2012 |
| McCollum | Gail Edwin | Wapello, IA | Flat antenna for digital television reception | USD656131S1 | 20 Mar 2012 |
| McCollum | Gail Edwin | Wapello, IA | UHF digital booster kit for a television antenna and method | US8018394B2 | 13 Sep 2011 |
| McCollum | Gail Edwin | Wapello, IA | Compact high definition digital television antenna | US8054237B2 | 8 Nov 2011 |
| McCollum | Gail Edwin | Wapello, IA | Television antenna | USD612369S1 | 23 Mar 2010 |
| McCollum | Gail Edwin | Wapello, IA | Compact high definition television antenna | USD612370S1 | 23 Mar 2010 |
| McCollum | Gail Edwin | Wapello, IA | Compact high definition digital television antenna | USD612371S1 | 23 Mar 2010 |
| McCollum | Gail Edwin | Wapello, IA | Television antenna | USD620483S1 | 27 Jul 2010 |
| McCollum | Gail Edwin | Wapello, IA | Compact high definition digital television antenna | USD623175S1 | 7 Sep 2010 |
| Metzger | Galen G. | Oakville, IA | Spacer for double cage reinforcement wire mesh for concrete products | US4999965A | 19 Mar 1991 |
| Raabe | Ralph C. | Letts, IA | Vertical mechanical filing cabinet | US3531171A | 29 Sep 1970 |
| Raabe | Ralph C. | Letts, IA | Ssplicing of tread strips | US4082592A | 4 Apr 1978 |
| Raabe | Ralph C. | Letts, IA | Apparatus for splicing tread strips | US4173509A | 6 Nov 1979 |
| Saltzman | Jerry | Morning Sun, IA | Lock out tag | US7624525A | 1 Dec 2009 |
| Sawyer | Bobby Gene | Wapello, IA | Crop harvesting machine | US3797207A | 19 Mar 1974 |
| Scheihing | George | Morning Sun, IA | Crutch | US1769167A | 1 Jul 1930 |
| Scheihing | George | Morning Sun, IA | Hay stacker | US2342015A | 15 Feb 1944 |
| Schmidgall | Hartzell H. | Morning Sun, IA | Vehicle unloading apparatus | US2776762A | 8 Jan 195 |
| Schnedler | Gary W. | Letts, IA | Retreaded tires and method for making the same without spray cement | US6368439A | 9 Apr 2002 |
| Schreiber | Robert A. | Columbus Junction, IA | Fish skinning pliers | USD796627S1 | 5 Sep 2017 |
| Schwob | Henry | Wapello, IA | Mechanical power hammer | US1951170A | 13 Mar 1934 |
| Schwob | Henry | Wapello, IA | Mechanical power hammer | US1951169A | 13 Mar 1934 |
| Schwob | Henry | Wapello, IA | Mechanical power hammer link moving means | US1961458A | 5 Jun 1934 |
| Shepley | Laurel A. | Wapello, IA | Belt drive with self-aligning idler | US4747810A | 31 May 1988 |
| Siline | Robert J. | Wapello, IA | Outdoor shower taking device | US3077609A | 19 Feb 1963 |
| Simmons | Loren M. | Wapello, IA | Task chair | USD368380A | 2 Apr 1996 |
| Simmons | Loren M. | Wapello, IA | Task chair | US5542743A | 6 Aug 1996 |
| Simmons | Loren M. | Wapello, IA | Back height adjustment mechanism for a chair | US5711576A | 27 Jan 1998 |
| Simmons | Peter A. | Wapello, IA | Simplified wall panel | US6775953A | 17 Aug 2004 |
| Staats | Stanley E. | Wapello, IA | Forked stakes for animal traps | US3974592A | 17 Aug 1976 |
| Stineman | Noel K. | Grandview, IA | Adjusting expandable rim width using a band. | US9724888B2 | 8 Aug 2017 |
| Terrill | Wade L. | Letts, IA | Adjusting expandable rim width using a band | US9724888B2 | 8 Aug 2017 |
| Todd | Michael D. | Columbus Junction, IA | Fluid applicators and methods of making same | US7988376B2 | 2 Aug 2011 |
| Wagg | Harley A. | Wapello, IA | Soldering iron | US1630990A | 31 May 1927 |
| Walker | James E. | Wapello, IA | Vending machine and money changer | US1890761A | 13 Dec 1932 |
| Weber | Howard E. | Morning Sun, IA | Combined golf tee marker and receptacle | USD311431A | 16 Oct 1990 |
| Weber | Howard E. | Morning Sun, IA | Container for repair divots | USD321235A | 29 Oct 1991 |
| White | Franklin T. | Morning Sun, IA | Recess joint for road construction | US3347515A | 17 Oct 1967 |
| White | Franklin T. | Morning Sun, IA | Recess joint for road construction | US3561720A | 9 Feb 1971 |
| Williams | Leo E. | Wapello, IA | Chair arm | USD383931A | 23 Sep 1997 |
| Wilson | Wayne J. | Morning Sun, IA | Hog and cattle skinning table | US2506532A | 2 May 1950 |
| Wright | Travis E. | Morning Sun, IA | Wall panel system | US6964138A | 15 Nov 2005 |
| Wright | Travis E. | Morning Sun, IA | Composite hutch door | US8528280B2 | 10 Sep 2013 |
| Wright | Travis E. | Morning Sun, IA | Wall panel system | US7958683B2 | 14 Jun 2011 |
