James J. Ridgell Jr.

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Elkridge, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Underwater background-acoustics synthesizer system and method
- Patent number 6,442,104
- Issue date Aug 27, 2002
- James Jefferson Ridgell
- F41 - WEAPONS
Information Patent Grant
Digitally shaped noise generating system
- Patent number 4,125,898
- Issue date Nov 14, 1978
- The Singer Company
- David A. DeHart
- G06 - COMPUTING CALCULATING COUNTING