Inventor · disambiguated record
Joel R. Finkel
Also filed as: FINKEL JOEL R
4 granted patents·349 citations·filing 1979–1987
82Inventor score
Top patents by PatentIndex Score
4 records- 0194US4442541AMethods of and apparatus for sensing the denomination of paper currencyGTE LABORATORIES INC·Filed 1979·Granted Apr 10, 1984·246 cites·2 claims
- 0290US4738901AMethod and apparatus for the prevention of unauthorized copying of documentsXEROX CORP·Filed 1987·Granted Apr 19, 1988·42 cites·1 claims
- 0386US4678322AMethod and apparatus for the prevention of unauthorized copying of documentsXEROX CORP·Filed 1986·Granted Jul 7, 1987·33 cites·6 claims
- 0455US4671839ASecure identification card manufactureXEROX CORP·Filed 1985·Granted Jun 9, 1987·28 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →