Inventor · disambiguated record
William A. Shumate
Also filed as: SHUMATE WILLIAM A
4 granted patents·209 citations·filing 1988–1989
80Inventor score
Top patents by PatentIndex Score
4 records- 0191US4933898ASecure integrated circuit chip with conductive shieldGEN INSTRUMENT CORP·Filed 1989·Granted Jun 12, 1990·154 cites·25 claims
- 0270US5083293APrevention of alteration of data stored in secure integrated circuit chip memoryGEN INSTRUMENT CORP·Filed 1989·Granted Jan 21, 1992·28 cites·10 claims
- 0359US5014310AVideo scrambling and descrambling by varying sequence of segments in adjacent video information linesGEN INSTRUMENT CORP·Filed 1989·Granted May 7, 1991·17 cites·15 claims
- 0445US4879720ADecoder ring systemMA COM GOV SYSTEMS·Filed 1988·Granted Nov 7, 1989·10 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →