Inventor · disambiguated record
Douglas H. Ziegel
Also filed as: ZIEGEL DOUGLAS H
5 granted patents·52 citations·filing 1980–1984
79Inventor score
Files withRCA CORP5
Top patents by PatentIndex Score
5 records- 0172US4560853APositioning and bonding a diamond to a stylus shankRCA CORP·Filed 1984·Granted Dec 24, 1985·23 cites·20 claims
- 0244US4379510AMethod and apparatus for sorting stonesRCA CORP·Filed 1981·Granted Apr 12, 1983·11 cites·8 claims
- 0343US4391520ATechnique for optical alignment of a workpieceRCA CORP·Filed 1980·Granted Jul 5, 1983·9 cites·21 claims
- 0438US4321772ALevelable lapping machineRCA CORP·Filed 1980·Granted Mar 30, 1982·4 cites·18 claims
- 0534US4286414AWork holderRCA CORP·Filed 1980·Granted Sep 1, 1981·5 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →