Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7314114 | Flat panel diffuser | Clarence Nicholas Colleran, Jr. | 2008-01-01 |
| 5126681 | In-wire selective active cancellation system | Eldon W. Ziegler, Jr. | 1992-06-30 |
| 5097923 | Active sound attenation system for engine exhaust systems and the like | Eldon W. Ziegler, Jr. | 1992-03-24 |
| 5060726 | Method and apparatus for producing tar sand deposits containing conductive layers having little or no vertical communication | Carlos A. Glandt, Harold J. Vinegar | 1991-10-29 |
| 5042579 | Method and apparatus for producing tar sand deposits containing conductive layers | Carlos A. Glandt, Harold J. Vinegar | 1991-08-27 |
| 4973999 | Film handling arrangements for sheet film view cameras and the like | Robert H. Hoffman, Jr. | 1990-11-27 |