Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6360690 | Self-cleaning bird feeder | — | 2002-03-26 |
| 4197248 | Reduction in chemical oxygen demand of water from crude tetrahydrofuran | Harry B. Copelin | 1980-04-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6360690 | Self-cleaning bird feeder | — | 2002-03-26 |
| 4197248 | Reduction in chemical oxygen demand of water from crude tetrahydrofuran | Harry B. Copelin | 1980-04-08 |