Spirit; David M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Spirit; David M..The latest application filed is for "optical time domain reflectometry".
- Spirit; David M. - Suffolk GB2
- Spirit; David M. - Woodbridge GB2
- Spirit; David M. - Melton GB2
| Patent | Date |
|---|---|
| Optical time domain reflectometry Grant 5,504,617 - Spirit April 2, 1 | 1996-04-02 |
| Optical time domain relectometry with optical amplifier for extended range and/or sensitivity Grant 5,448,059 - Blank , et al. September 5, 1 | 1995-09-05 |
| OTDR having optically switched amplified output onto test fibre to suppress optical amplifier noise between OTDR pluses Grant 5,343,286 - Keeble , et al. August 30, 1 | 1994-08-30 |
| OTDR using distributed optical amplification in optical waveguide under test Grant 5,298,965 - Spirit , et al. March 29, 1 | 1994-03-29 |
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