Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7350830 | Pressure relieved thread connection | Richard W. DeLange, Woodward A. Taylor | 2008-04-01 |
| 6905149 | Pressure relieved thread connection | Richard W. DeLange, Woodward A. Taylor | 2005-06-14 |
| 4187059 | Valve guide for poppet valve | Kenneth H. McGill | 1980-02-05 |
| 4184814 | Valve guide for poppet valve | Kenneth H. McGill | 1980-01-22 |