Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5530255 | Apparatus and methods for electron beam irradiation | Marlin N. Schuetz, David A. Vroom | 1996-06-25 |
| 5416440 | Transmission window for particle accelerator | Marlin N. Schuetz, David A. Vroom | 1995-05-16 |
| 4899157 | Leading edge detector/reply quantizer | Norman R. Sanford, Robert C. Yienger | 1990-02-06 |
| 4775778 | PTC compositions and devices comprising them | Peter H. van Konynenburg | 1988-10-04 |
| 4654511 | Layered self-regulating heating article | David A. Horsma, Robert Smith-Johannsen | 1987-03-31 |
| 4543474 | Layered self-regulating heating article | David A. Horsma, Robert Smith-Johannsen | 1985-09-24 |
| 4534889 | PTC Compositions and devices comprising them | Peter H. van Konynenburg, Robert Smith-Johannsen, Wendell W. Moyer | 1985-08-13 |
| 4388607 | Conductive polymer compositions, and to devices comprising such compositions | Lester T. Toy, Wendell W. Moyer, David A. Horsma | 1983-06-14 |
| 4330703 | Layered self-regulating heating article | David A. Horsma, Robert Smith-Johannsen | 1982-05-18 |
| 4198310 | High voltage insulating compositions containing organic polymerizable phosphorus compounds | Travers K. Cammack, II, David D. Nyberg | 1980-04-15 |
| 4188276 | Voltage stable positive temperature coefficient of resistance crosslinked compositions | Young Jea Kim | 1980-02-12 |