Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12228220 | Modulating butterfly valve control | David M. Angell, Keith David Weaver | 2025-02-18 |
| 11802632 | Modulating butterfly valve control | David M. Angell, Keith David Weaver | 2023-10-31 |