Gilcher; Heinz
Patent Applications and Registrations
Patent applications and USPTO patent grants for Gilcher; Heinz.The latest application filed is for "railway vehicle wheel detector utilizing magnetic differential bridge".
- Gilcher; Heinz - Export PA
| Patent | Date |
|---|---|
| Railway vehicle wheel detector utilizing magnetic differential bridge Grant 5,333,820 - Gilcher August 2, 1 | 1994-08-02 |
| Vital solid state relay for railroad alternating current track circuits Grant 4,535,959 - Gilcher August 20, 1 | 1985-08-20 |
| Code reset apparatus for railroad track circuits Grant 4,407,470 - Gilcher October 4, 1 | 1983-10-04 |
| Vital cross field transformer circuit arrangement for railroad signaling systems Grant 4,298,179 - Gilcher November 3, 1 | 1981-11-03 |
| Differential clamp-on railway vehicle wheel detector Grant 4,200,856 - Gilcher April 29, 1 | 1980-04-29 |
| Bolt-like railway vehicle wheel detector Grant 4,200,855 - Gilcher April 29, 1 | 1980-04-29 |
| Vital power varistor circuit for railroad signaling systems Grant 4,188,002 - Gilcher February 12, 1 | 1980-02-12 |
| Intrusion Detection System Grant 3,846,780 - Gilcher November 5, 1 | 1974-11-05 |
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