Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8622367 | Low friction live-loaded packing | Ted Dennis Grabau | 2014-01-07 |
| 8622072 | Apparatus to control fluid flow | — | 2014-01-07 |
| 8483998 | In situ emission measurement for process control equipment | Carter B. Cartwright | 2013-07-09 |
| 8220485 | Pneumatic pilot valve | — | 2012-07-17 |
| 7963502 | Low friction live-loaded packing | Ted Dennis Grabau | 2011-06-21 |
| 7818092 | In situ emission measurement for process control equipment | Carter B. Cartwright | 2010-10-19 |
| 7609056 | Apparatus to determine the position of an actuator | Kenneth W. Junk, Ronald F. Hurd, Steven B. Paullus | 2009-10-27 |
| 7303179 | Split packing follower for use with valves | Donald R. Bush, Richard B. Eberhart | 2007-12-04 |
| 7185672 | Valve travel indicator | — | 2007-03-06 |
| 7178785 | Stem arrangement for pivot actuated sleeve valve | Michael W. McCarty, Douglas P. Gethmann | 2007-02-20 |
| 7069948 | Valve travel indicator | — | 2006-07-04 |
| 6991218 | Control valve with retained pin for easy valve trim maintenance | Alan D. Bremers, Michael M. Anderson, Mark Stiehl | 2006-01-31 |
| 6953182 | Retainer lock nut for fluid pressure control device | Wayne Russell Faas, Michael M. Anderson | 2005-10-11 |
| 6929245 | Stem to sleeve connection for pivot actuated sleeve valve | Michael W. McCarty, Douglas P. Gethmann | 2005-08-16 |
| 6874761 | Pivot actuated sleeve valve | Michael W. McCarty, Douglas P. Gethmann | 2005-04-05 |
| 6733000 | Pivot actuated sleeve valve | Michael W. McCarty, Douglas P. Gethmann | 2004-05-11 |
| 5593166 | Low friction packing | Randall S. Jackson, Ronald R. Brestel | 1997-01-14 |