Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8127492 | Compound barrier mechanism for passageway control | Robert R. Hellman, Jr. | 2012-03-06 |
| 5445361 | Fluid flow valve | — | 1995-08-29 |
| 5425261 | Method for forming thin-wall tubing | Peter J. Mullen | 1995-06-20 |
| 5320331 | Method and apparatus for forming corrugations in tubing and a corrugated tube produced thereby | — | 1994-06-14 |
| 5302789 | Snap switch having low resistance | Stephen B. Barrey | 1994-04-12 |
| 5118121 | Compound gasket useful for high temperature, high pressure service | — | 1992-06-02 |
| 4995549 | Method and apparatus for forming and welding thin-wall tubing | — | 1991-02-26 |