Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6382587 | Fluid control valve | Christopher Helmer, Libby Williams | 2002-05-07 |
| 4635349 | Method of making single phase multi-speed motor | — | 1987-01-13 |
| 4296344 | Multi-speed motor | — | 1981-10-20 |