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Patent applications and USPTO patent grants for Davidson; Eldon F..The latest application filed is for "rapidly responding vertical speed indicator for use in aircraft".
Patent | Date |
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Rapidly responding vertical speed indicator for use in aircraft Grant 4,936,142 - Davidson June 26, 1 | 1990-06-26 |
Digital averaging filter particularly suited for use with air navigation receivers Grant 4,714,929 - Davidson December 22, 1 | 1987-12-22 |
Phase-locked digital very high frequency omni-range (VOR) receiver Grant 4,604,625 - Davidson August 5, 1 | 1986-08-05 |
Apparatus and method for use in instrument landing system localizer and glide-slope receivers for deriving course deviation information Grant 4,586,049 - Davidson April 29, 1 | 1986-04-29 |
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