Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9982418 | Gate strainer that fits into a gate valve curb box | — | 2018-05-29 |
| 4234888 | Multi-level large scale complex integrated circuit having functional interconnected circuit routed to master patterns | Donald F. Calhoun | 1980-11-18 |