Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7491877 | Drum shell mounting system and associated methods | — | 2009-02-17 |
| 7135631 | Quartz drum and method of making | Richard R. Weir | 2006-11-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7491877 | Drum shell mounting system and associated methods | — | 2009-02-17 |
| 7135631 | Quartz drum and method of making | Richard R. Weir | 2006-11-14 |