Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8162272 | Window maintenance apparatus for a tilt-in sash | — | 2012-04-24 |
| 6408571 | Automatic closing gate | — | 2002-06-25 |
| 4375834 | Casing perforation method and apparatus | — | 1983-03-08 |
| RE30829 | Casing perforation method and apparatus | — | 1981-12-22 |
| 4199210 | Automatic coupling and decoupling apparatus | — | 1980-04-22 |