| Search Again | Story County, Iowa Inventory Patents |
Story Co. Home Page |
| Name | Patent Title | Patent Number |
City | Year |
|---|---|---|---|---|
| Wade HELFER | Valve body insert apparatus and related methods | 10844962 | Ames | 2020 |
| Wade HELFER | Methods and apparatus to load a valve packing | 11143314 | Ames | 2021 |
| Wade HELFER | Bushing having a shaft seal | 10969030 | Ames | 2021 |
| Wade HELFER | Rotary control valve having a clamped valve seat | 10914387 | Ames | 2021 |
| Wade HELFER | Flow control seals | 11460118 | Ames | 2022 |
| Wade HELFER | Valve seals | 09568110 | Ames | 2017 |
| Wade HELFER | Flexible seals for process control valves | 09587747 | Ames | 2017 |
| Wade HELFER | Flexible seals for process control valves | 09127775 | Ames | 2015 |
| Wade HELFER | Valve seals | 08814138 | Ames | 2014 |
| Wade HELFER | Packing followers for use with valves | 08727310 | Ames | 2014 |
| Wade HELFER | Collets for use with valves | 08408837 | Ames | 2013 |
| Wade HELFER | Flexible seals for process control valves | 08286938 | Ames | 2012 |
| Wade HELFER | Rotary actuator lever apparatus having an annular recess | 08096526 | Ames | 2012 |
| Wade HELFER | Control valve having ?C? seal | 08011386 | Ames | 2011 |
| Wade HELFER | Control valve having ?C? seal | 07681594 | Ames | 2010 |
| Wade J. HELFER | control valve trim and bore seal | 06851658 | Ames | 2005 |
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