Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5375653 | Heat exchanger system with turbulator for particle-in-liquid dispersion | Axel Horst Borlinghaus | 1994-12-27 |
| D260257 | Combined phonograph, tape player and lighting cabinet | George P. Roegner, Richard Hawley, Sig Biener | 1981-08-18 |
| 4250537 | Discotheque simulating home entertainment system | George P. Roegner, Richard Hawley, Sig Biener | 1981-02-10 |