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For the Inventor, By the Inventor

Crestwood, MO, United States of America

George L Engel

USPTO Granted Patents = 3

Average Co-Inventor Count = 4.0

ph-index = 3

Forward Citations = 136(Granted Patents)


Company Filing History:

goldMedal3 out of 11 
 
Central Institute for the Deaf
 patents

Years Active: 1992-1994

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3 patents (USPTO):Explore Patents
1. 5357251 - Electronic filters, signal conversion apparatus, hearing aids and methods (1994-10-18),
2. 5225836 - Electronic filters, repeated signal charge conversion apparatus, hearing (1993-07-06),
3. 5111419 - Electronic filters, signal conversion apparatus, hearing aids and methods (1992-05-05),

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