Inventor · disambiguated record
John J. Kopko
Also filed as: KOPKO JOHN J
7 granted patents·60 citations·filing 1982–1992
84Inventor score
Top patents by PatentIndex Score
7 records- 0167US5175591ACleaning device including abrading cleaning brush for comet controlXEROX CORP·Filed 1991·Granted Dec 29, 1992·20 cites·20 claims
- 0256US4537495AMultispeed development systemZEROX CORP·Filed 1983·Granted Aug 27, 1985·10 cites·12 claims
- 0356US4398496AMulti-roll development systemXEROX CORP·Filed 1982·Granted Aug 16, 1983·10 cites·30 claims
- 0442US4499851ASelf-spaced development systemXEROX CORP·Filed 1983·Granted Feb 19, 1985·5 cites·16 claims
- 0537US4544618ADevelopment process utilizing conductive materialsXEROX CORP·Filed 1982·Granted Oct 1, 1985·4 cites·13 claims
- 0636US5078086ADeveloper unit having an indexable magnetXEROX CORP·Filed 1988·Granted Jan 7, 1992·4 cites·12 claims
- 0735US5247328AMethod and apparatus for charging a photoconductive surface to a uniform potentialXEROX CORP·Filed 1992·Granted Sep 21, 1993·7 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →