Inventor · disambiguated record
Douglas J. Hatch
Also filed as: HATCH DOUGLAS J
3 granted patents·91 citations·filing 1982–1995
75Inventor score
Top patents by PatentIndex Score
3 records- 0174US5802937ASmart tool holderUNIV CALIFORNIA·Filed 1995·Granted Sep 8, 1998·42 cites·4 claims
- 0274US4521809AMethod and apparatus for controlling access to selected television programsPHILIPS CORP·Filed 1982·Granted Jun 4, 1985·24 cites·10 claims
- 0371US4629999APhase-locked loop capable of generating a plurality of stable frequency signalsPHILIPS CORP·Filed 1983·Granted Dec 16, 1986·25 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →