Cowpland, Michael C. J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cowpland, Michael C. J..The latest application filed is for "method and system for mapping dialog definitions to multiple media".
- Cowpland, Michael C. J. - Rockliffe CA
- Cowpland; Michael C. J. - Ottawa CA
| Patent | Date |
|---|---|
| Method and system for mapping dialog definitions to multiple media App 20030056172 - Vukelic, Brane ; et al. | 2003-03-20 |
| Trunk circuit with single coupling transformer Grant 4,321,431 - Beirne , et al. * March 23, 1 | 1982-03-23 |
| Telephone line circuit Grant 4,281,219 - Cowpland , et al. July 28, 1 | 1981-07-28 |
| Tone decoding circuit Grant 4,273,965 - Cowpland , et al. June 16, 1 | 1981-06-16 |
| Transformerless trunk circuit Grant 4,182,936 - Beirne , et al. January 8, 1 | 1980-01-08 |
| Transformerless telephone line circuit Grant 4,178,485 - Cowpland , et al. December 11, 1 | 1979-12-11 |
| Alternating current regulator for use with telephone type line Grant 3,989,902 - Cowpland November 2, 1 | 1976-11-02 |
| Audio frequency signalling systems for telephone systems Grant 3,894,197 - Cowpland , et al. July 8, 1 | 1975-07-08 |
| Power Supply Circuit For An Electronic Telephone Set Grant 3,800,095 - Cowpland March 26, 1 | 1974-03-26 |
| Dual Tone Receiver Grant 3,795,775 - Cowpland March 5, 1 | 1974-03-05 |
| Threshold Circuit For Tone-ringer Grant 3,772,470 - Cowpland , et al. November 13, 1 | 1973-11-13 |
| Impedance Matching Circuit For Tone Ringing Grant 3,731,004 - Cowpland , et al. May 1, 1 | 1973-05-01 |
| Equalizing And Antisidetone Telephone Circuit Grant 3,592,971 - Cowpland July 13, 1 | 1971-07-13 |
| SEC | 0000900372 | COWPLAND MICHAEL C J |
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