Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9587747 | Flexible seals for process control valves | Wade Jonathon Helfer, David John Koester, Benjamin Uriah Good, Andrew J. Olson | 2017-03-07 |
| 9541203 | Floating ball valve seal | — | 2017-01-10 |
| 9140369 | Floating ball valve seal | — | 2015-09-22 |
| 9068658 | Apparatus to bias valve closure members | Jason Gene Olberding, Bryan Quinn Leger | 2015-06-30 |
| 8752809 | Methods and apparatus to couple valve shafts and closure members | Ross Eugene Long | 2014-06-17 |
| 8720854 | Floating ball valve seal with dynamic C-seal and static C-seal | Lonnie Oscar Davies, JR., William V. Fitzgerald | 2014-05-13 |
| 8496226 | Floating ball valve seal with bellows and C-seal | Lonnie Oscar Davies, JR. | 2013-07-30 |
| 8286938 | Flexible seals for process control valves | Wade Jonathon Helfer, David John Koester, Benjamin Uriah Good, Andrew J. Olson | 2012-10-16 |
| 8281798 | Ball valve seal assembly and ball valve comprising same | Lonnie Oscar Davies, JR. | 2012-10-09 |
| 8205633 | Collets for use with valves | Larry J. Weber | 2012-06-26 |
| 8096524 | Seal retainer/line centering clips with multiple flange capability | Paul A. Day | 2012-01-17 |
| 8070130 | Apparatus to bias valve closure members | Jason Gene Olberding, Bryan Quinn Leger | 2011-12-06 |
| 8061681 | Apparatus and methods to couple actuator stems and rod end bearings | — | 2011-11-22 |
| 7744062 | Apparatus to vary effective spring rate for use in diaphragm actuators | — | 2010-06-29 |
| 7703745 | Seal retainer/longitudinal centering clips with multiple flange capability | Paul A. Day | 2010-04-27 |
| 7661650 | Collet biasing device for valve actuator | Paul A. Day | 2010-02-16 |
| 7059585 | Fluid valve control members having contoured sealing surfaces | Larry Dean Pothast, Gary Alan Witt | 2006-06-13 |