Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11181128 | Valve system for pneumatic cylinders | Natalie E. Bell, David M. Matz, Gregory F. Matz, Scott R. Jones | 2021-11-23 |
| 10927858 | Valve system for pneumatic cylinders | Natalie E. Bell, David M. Matz, Gregory F. Matz, Scott R. Jones | 2021-02-23 |
| 10480542 | Valve system for pneumatic cylinders | Natalie E. Bell, David M. Matz, Gregory F. Matz, Scott R. Jones, Edward C. Horn | 2019-11-19 |
| 9903487 | Valve system for pneumatic cylinders | Natalie E. Bell, David M. Matz, Gregory F. Matz, Scott R. Jones | 2018-02-27 |
| 7036497 | Archery bow stand | — | 2006-05-02 |
| 6997210 | Valve arrangement including release valve | Robert E. Dowd, Thomas John Oliver Thornton | 2006-02-14 |
| 6634630 | Clamping and lifting mechanism | Vladimir Novak, Robert E. Dowd, Leonid Dukhin | 2003-10-21 |
| 6522400 | Portable front wheel alignment apparatus and method | — | 2003-02-18 |
| 6520342 | Product handling apparatus | Robert D. Dumke, Gerald A. Kohlman, John Wolf, Mike Gross, Todd Sherbinow +1 more | 2003-02-18 |
| 6477937 | Valve arrangement including release valve | Robert E. Dowd | 2002-11-12 |
| 6290210 | Clamping and lifting mechanism | Vladimir Novak, Robert E. Dowd, Leonoid Dukhin | 2001-09-18 |
| 5816567 | Fluid operated clamp including integral frame and slide member support | — | 1998-10-06 |
| 5687961 | Fluid operated clamp including integral frame and slide member support | — | 1997-11-18 |
| 5676357 | Clamp including resilient internal link | — | 1997-10-14 |
| 5081904 | Locking valve and flow control valve assembly | Derek Hopkinson, Michael Allen | 1992-01-21 |
| 4838306 | Pneumatic locking valve with manual override | Derek Hopkinson | 1989-06-13 |
| 4838532 | Fluid operated clamping device including fluid pressure locking means | Derek Hopkinson | 1989-06-13 |
| 4679782 | Mechanical toggle clamp with means for applying uniform clamping force | Norbert J. Kot | 1987-07-14 |
| 4576367 | Pneumatic mechanical clamp including locking means | Norbert J. Kot | 1986-03-18 |
| 4532706 | Retaining ring assembly machine | — | 1985-08-06 |