Issued Patents All Time
Showing 25 most recent of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10655417 | Tubular wellhead component coupling systems and method | Dennis P. Nguyen | 2020-05-19 |
| 10156112 | Hybrid wellhead connector | Craig Cotton | 2018-12-18 |
| 10156122 | Back pressure valve | Dennis P. Nguyen, Kirk P. Guidry | 2018-12-18 |
| 9850743 | Safety device for retrieving component within wellhead | Randall Dean Harkins, Kirk P. Guidry | 2017-12-26 |
| 9719323 | Back pressure valve | Dennis P. Nguyen, Kirk P. Guidry | 2017-08-01 |
| 9297226 | Back pressure valve | Dennis P. Nguyen, Kirk P. Guidry | 2016-03-29 |
| 9187969 | Safety device for retrieving component within wellhead | Randall Dean Harkins, Kirk P. Guidry | 2015-11-17 |
| 9133672 | Back pressure valve | Dennis P. Nguyen, Kirk P. Guidry | 2015-09-15 |
| 8936092 | Seal system and method | Dennis P. Nguyen | 2015-01-20 |
| 8800646 | Safety device for retrieving component within wellhead | Randall Dean Harkins, Kirk P. Guidry | 2014-08-12 |
| 8616289 | Back pressure valve | Dennis P. Nguyen, Kirk P. Guidry | 2013-12-31 |
| 8347966 | Seal system and method | Dennis P. Nguyen | 2013-01-08 |
| D652102 | Jitter blade | — | 2012-01-10 |
| 5585161 | Bond site reinforcement in thermal bonded highloft non-wovens | Donna M. Difloe | 1996-12-17 |
| 5413350 | Illuminated game board with light directing transparent lens | Bruce R. Guymon, Dorothy I. Taylor, Helen E. Guymon | 1995-05-09 |
| D319492 | Bathtub | — | 1991-08-27 |
| D317354 | Bathtub | — | 1991-06-04 |
| D307046 | Drain fitting | John D. Burgess | 1990-04-03 |
| D299164 | Shower stall base | John D. Burgess | 1988-12-27 |
| 4781574 | Method and system for controlling cyclone collection efficiency and recycle rate in fluidized bed reactors | — | 1988-11-01 |
| D295309 | Bath tub | John D. Burgess | 1988-04-19 |
| D295308 | Bathtub | John D. Burgess | 1988-04-19 |
| D285110 | Corner bath tub | John D. Burgess | 1986-08-12 |
| D282564 | Combined bathtub and skirt | John D. Burgess | 1986-02-11 |
| 4519377 | Fireplace heat transfer apparatus | — | 1985-05-28 |