Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7267602 | Seal assembly manufacturing methods | Matthew Hartford, Joseph D. Moriarty | 2007-09-11 |
| 7207870 | Seal assembly manufacturing methods and seal assemblies manufactured thereby | Matthew Hartford, Joseph D. Moriarty | 2007-04-24 |
| 6899595 | Seal assembly manufacturing methods and seal assemblies manufactured thereby | Matthew Hartford, Joseph D. Moriarty | 2005-05-31 |
| 6378872 | Seal assembly | — | 2002-04-30 |
| 5779244 | Seal apparatus | Joseph E. Whitesell | 1998-07-14 |
| 5618048 | Piston ring seal having angled ends | Joseph E. Whitesell | 1997-04-08 |
| 4438937 | Piston ring | — | 1984-03-27 |