Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11739439 | Active cleaning vacuum system and method | Richard D. Webb, John A. Reese, Joel C. Stefl | 2023-08-29 |
| 11421346 | Active cleaning vacuum system and method | Richard D. Webb, John A. Reese, Joel C. Stefl | 2022-08-23 |