Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6612443 | Hutch chamber for jig | Christopher George Kelsey | 2003-09-02 |
| 6286686 | Hutch chamber for jig | Christopher George Kelsey | 2001-09-11 |
| 4858887 | Valve and valve roller sealing | Christopher George Kelsey | 1989-08-22 |