Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7350830 | Pressure relieved thread connection | Richard W. DeLange, Curtis J. Parker | 2008-04-01 |
| 6905149 | Pressure relieved thread connection | Richard W. DeLange, Curtis J. Parker | 2005-06-14 |