Inventor · disambiguated record
Donald E. Sprotbery
Also filed as: SPROTBERY DONALD E
3 granted patents·348 citations·filing 1975–1997
78Inventor score
Technology areasH04N
Top patents by PatentIndex Score
3 records- 0196US4127322AHigh brightness full color image light valve projection systemHUGHES AIRCRAFT CO·Filed 1975·Granted Nov 28, 1978·274 cites·15 claims
- 0274US5907437AConverging optics for a single light valve full-color projectorHUGHES JVC TECH CORP·Filed 1997·Granted May 25, 1999·53 cites·24 claims
- 0356US5465174ASingle light valve full-color projector displayFiled 1994·Granted Nov 7, 1995·21 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →