Inventor · disambiguated record
Charles C. Matthews
Also filed as: MATTHEWS CHARLES · MATTHEWS CHARLES C
8 granted patents·544 citations·filing 1981–1992
90Inventor score
Top patents by PatentIndex Score
8 records- 0193US5204310AHigh activity, high density activated carbonWESTVACO CORP·Filed 1992·Granted Apr 20, 1993·122 cites·15 claims
- 0293US4494177AArticulated task lampPLAN HOLD CORP·Filed 1983·Granted Jan 15, 1985·217 cites·11 claims
- 0392US5276000APreparation for high activity, high density carbonWESTVACO CORP·Filed 1992·Granted Jan 4, 1994·64 cites·15 claims
- 0487US4591016ABrake system in a vehicle hybrid drive arrangementGEN MOTORS CORP·Filed 1984·Granted May 27, 1986·53 cites·15 claims
- 0583US5238470AEmission control deviceWESTAVCO CORP·Filed 1992·Granted Aug 24, 1993·47 cites·6 claims
- 0670USD280030SBalanced light for drafting tablesPLAN HOLD CORP·Filed 1982·Granted Aug 6, 1985·13 cites·1 claims
- 0754US4824119ABack spelling card gameMATTHEWS CHARLES C·Filed 1988·Granted Apr 25, 1989·16 cites·10 claims
- 0849US4383375ADrafting apparatusPLAN HOLD CORP·Filed 1981·Granted May 17, 1983·12 cites·28 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →