Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7243676 | Combination umbrella and inverted bi-directional valve | — | 2007-07-17 |
| 7225829 | Flow-control valve assembly | — | 2007-06-05 |
| 7222643 | Internal post flow control | — | 2007-05-29 |
| 7097632 | Automatic valve | Benedict Shia | 2006-08-29 |
| 6612344 | Integrated vent and fluid transfer fitment | Phillip Nagel, Gordon E. Atkinson, Arnold George Benecke | 2003-09-02 |
| 6491069 | Integrated vent and fluid transfer fitment | Phillip Nagel, Gordon E. Atkinson, Arnold George Benecke | 2002-12-10 |
| 6427730 | Integrated vent and fluid transfer fitment | Phillip Nagel, Gordon E. Atkinson, Arnold George Benecke | 2002-08-06 |
| 6206058 | Integrated vent and fluid transfer fitment | Phillip Nagel, Gordon E. Atkinson, Arnold George Benecke | 2001-03-27 |
| 5992462 | Disc type check valve | Gordon E. Atkinson | 1999-11-30 |
| 5769275 | Dual dispensing valve assembly | Dennis A. Boehmer, Gordon E. Atkinson, James R. Kunce | 1998-06-23 |
| 5536021 | Damper seal | Dennis A. Boehmer, Peter L. J. Nijland | 1996-07-16 |
| 5375292 | System and method for vacuum extraction of foreign materials | — | 1994-12-27 |
| 5261459 | Miniature duckbill valve having a low cracking pressure and high flow rate | Gordon E. Atkinson, James R. Kunce | 1993-11-16 |
| 5163926 | Suction metering and mixing device | Gordon E. Atkinson | 1992-11-17 |
| 5141501 | Suction metering and mixing device | Gordon E. Atkinson | 1992-08-25 |
| 5103854 | Low pressure check valve for artificial respiration devices | Dennis A. Boehmer, Gordon E. Atkinson | 1992-04-14 |
| 5010925 | Normally closed duckbill valve assembly | Gordon E. Atkinson | 1991-04-30 |
| 4986310 | Low pressure check valve | Gordon E. Atkinson, Dennis A. Boehmer | 1991-01-22 |
| 4920735 | Operational carrier for wheel-type hay rake | Gilber D. Bailey | 1990-05-01 |