Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4423109 | Fiber reinforced rubber gasket material | Norman L. Greenman, Richard C. Berry, Douglas H. Tracy, Michael Lunt, Jeffrey B. Otto | 1983-12-27 |
| 4387178 | Compressible soft asbestos free gasket material | Douglas H. Tracy, Jeffrey B. Otto, Elizabeth L. Callan | 1983-06-07 |