Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D343691 | Combined crank handle hub and window sill | James C. Guhl, David Weiss | 1994-01-25 |
| 5205074 | Counterbalanced window operators | James C. Guhl, Jurgen R. Martens, Harald Tomanek | 1993-04-27 |
| D331531 | Crank handle | James C. Guhl, David Weiss | 1992-12-08 |
| 5097629 | Counterbalanced window operators | James C. Guhl | 1992-03-24 |
| 4976066 | Sliding window apparatus and method | David D. Plummer | 1990-12-11 |
| 4637403 | Glucose medical monitoring system | Fernando S. Garcia, Paul J. Anderson, Bertram J. Hudson | 1987-01-20 |
| 4627445 | Glucose medical monitoring system | Fernando S. Garcia, Paul J. Anderson, David E. Linde, Bertram J. Hudson | 1986-12-09 |