Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855714 | Fluid status detector | Steven A. MacIntyre | 1989-08-08 |
| 4848115 | Electronic locking system and key therefor | Ronald J. Frere, Thomas G. Loughlin, William Taylor, Peter Mongeau | 1989-07-18 |
| 4835521 | Fluid status detector | Raymond J. Andrejasich, Laurence S. Slocum | 1989-05-30 |
| 4831360 | Fluid status detector | Steven A. MacIntyre | 1989-05-16 |