Townsend; Paul David
Patent Applications and Registrations
Patent applications and USPTO patent grants for Townsend; Paul David.The latest application filed is for "communication by radio waves and optical waveguides".
- Townsend; Paul David - Ovens IE
- Townsend, Paul David - Woodbridge GB
- Townsend; Paul David - Suffolk GB
- Townsend; Paul David - Soffolk GB
| Patent | Date |
|---|---|
| Communication by radio waves and optical waveguides App 20080101798 - Healey; Peter ; et al. | 2008-05-01 |
| Communication by radio waves and optical waveguides App 20060083520 - Healey; Peter ; et al. | 2006-04-20 |
| Optical communication networks and methods of controlling them App 20040218928 - Cotter, David ; et al. | 2004-11-04 |
| Optical signal transmitter App 20030007207 - Healey, Peter ; et al. | 2003-01-09 |
| Quantum cryptography Grant 5,953,421 - Townsend September 14, 1 | 1999-09-14 |
| System and method for key distribution using quantum cryptography Grant 5,850,441 - Townsend , et al. December 15, 1 | 1998-12-15 |
| System and method for key distribution using quantum cryptography Grant 5,675,648 - Townsend October 7, 1 | 1997-10-07 |
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