Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826457 | Apparatus for electrically controlling device, and a method of operating it | Jim Henson, Richard J. Davis, Diana Rodriguez | 2004-11-30 |
| 6626239 | Internal gate valve for flow completion systems | Christopher E. Cunningham, Christopher D. Bartlett, Thomas L. Hergarden, Philip Hernandez | 2003-09-30 |
| 6497277 | Internal gate valve for flow completion systems | Christopher E. Cunningham, Christopher D. Bartlett, Thomas L. Hergarden, Philip Hernandez | 2002-12-24 |
| 5713389 | Check valve and check valve seat | Roy Bates | 1998-02-03 |
| 5676348 | Asymmetric seal segment configuration | Tep Ungchusri, Roy Bates | 1997-10-14 |
| 4565629 | Filter assembly | David R. Olson, Walter H. Stone, Robin B. MacDonald | 1986-01-21 |
| 4502956 | Filter assembly | David R. Olson, Walter H. Stone, Robin B. MacDonald | 1985-03-05 |
| D271292 | Condensate collection and removal device for pressurized air supply such as used for operating vehicular air brakes | William Dixon, Eric J. Bettencourt | 1983-11-08 |
| 4314689 | Drain valve | — | 1982-02-09 |
| 4276162 | Flame resistant sump assembly | — | 1981-06-30 |