Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7017200 | Convertible furniture | Frederick Stengel | 2006-03-28 |
| 6508526 | Convertible bed with computer desk | Frederick Stengel | 2003-01-21 |
| 5983575 | Retractable dome | — | 1999-11-16 |
| 5778603 | Retractable dome | — | 1998-07-14 |
| 5775456 | Emergency driver system | — | 1998-07-07 |
| 5675907 | Collapsible foot dryer | Robert G. Reppas, Charles B. Reppas, Katherine R. Morse | 1997-10-14 |
| 5621930 | Self standing convertible furniture frame assembly | Thomas M. Sherlock, Jeffery K. Sullivan | 1997-04-22 |
| 5598164 | Vehicle obstacle avoidance system | Robert G. Reppas, Charles B. Reppas | 1997-01-28 |
| 5438764 | Foot dryer | Robert G. Reppas, Charles B. Reppas, Katherine A. Reppas | 1995-08-08 |
| 5257481 | Retractable dome | William Goryl | 1993-11-02 |
| 5136737 | Self standing convertible furniture frame assembly | Thomas M. Sherlock, Jeffery K. Sullivan | 1992-08-11 |
| 4476592 | Convertible furniture with force equilibrium and latch mechanism | Gerrit K. Drexhage | 1984-10-16 |
| 4318195 | Convertible furniture unit | — | 1982-03-09 |