Inventor · disambiguated record
R. Clark Dubois
Also filed as: DUBOIS R C · DUBOIS R CLARK
33 granted patents·1 pending application·447 citations·filing 1973–2006
97Inventor score
Top patents by PatentIndex Score
34 records- 0195US4332377ACompact sorterGRADCO DENDOKI INC·Filed 1981·Granted Jun 1, 1982·57 cites·4 claims
- 0291US4328963ACompact sorterGRADCO DENDOKI INC·Filed 1979·Granted May 11, 1982·39 cites·16 claims
- 0391US3939087AToner compositions containing silane treated fumed silicaPITNEY BOWES INC·Filed 1973·Granted Feb 17, 1976·29 cites·8 claims
- 0490US4466608AMovable tray sheet sorterGRADCO SYSTEMS INC·Filed 1982·Granted Aug 21, 1984·37 cites·12 claims
- 0588US4478406AApparatus for sorting photocopiesGRADCO SYSTEMS INC·Filed 1982·Granted Oct 23, 1984·32 cites·7 claims
- 0682US5131644ASorter and receiving trayDUBOIS R CLARK·Filed 1989·Granted Jul 21, 1992·25 cites·21 claims
- 0778US4674735AAutomatic sheet feeder for copiers and other machines having sheet transport mechanisms and assemblies therewithDUBOIS R CLARK·Filed 1985·Granted Jun 23, 1987·30 cites·12 claims
- 0878US4155168APower extended tape measureFAIRFIELD SAILING SUPPLIES INC·Filed 1978·Granted May 22, 1979·30 cites·15 claims
- 0975US4526361ADocument turnover deviceDUBOIS R CLARK·Filed 1983·Granted Jul 2, 1985·20 cites·23 claims
- 1070US7370432B2Tape measure with detachable tapeDUBOIS R CLARK·Filed 2006·Granted May 13, 2008·6 cites·21 claims
- 1167US4186837AAutomated film cartridge and mailer sorting and correlating apparatusMYSTIC COLOR LAB INC·Filed 1978·Granted Feb 5, 1980·11 cites·35 claims
- 1266US4019911AToner compositionsPITNEY BOWES INC·Filed 1975·Granted Apr 26, 1977·11 cites·5 claims
- 1365USD271882SUniversal sorterGRADCO/DENDOKI INC·Filed 1980·Granted Dec 20, 1983·9 cites·1 claims
- 1464US4702466ASheet material feeder for copiers and other sheet processing apparatusDUBOIS R CLARK·Filed 1985·Granted Oct 27, 1987·14 cites·15 claims
- 1562US4515053AContinuous web feeder with web cutting meansDUBOIS R CLARK·Filed 1983·Granted May 7, 1985·12 cites·15 claims
- 1660US5022639ADocument feeder with improved recyclable document controlDUBOIS R CLARK·Filed 1988·Granted Jun 11, 1991·12 cites·1 claims
- 1760US4632376ADrive mechanism for document copierDUBOIS R CLARK·Filed 1985·Granted Dec 30, 1986·12 cites·6 claims
- 1860US4397461ASorting machineGRADCO DENDOKI INC·Filed 1981·Granted Aug 9, 1983·12 cites·10 claims
- 1955US4522519AApparatus and process for drop-feeding sheets to a typing or printing machine including separable paper clamping traysDUBOIS R CLARK·Filed 1982·Granted Jun 11, 1985·8 cites·13 claims
- 2055US2007011801A1Toilet with spinning bowl and water jetDUBOIS R C·Filed 2006·Application pending·0 cites
- 2152USD270253SCombined copying and sorting machineGRADCO/DENDOKI INC·Filed 1981·Granted Aug 23, 1983·5 cites·1 claims
- 2249US4500087ADrop tray sorterGRADCO SYSTEMS INC·Filed 1983·Granted Feb 19, 1985·8 cites·10 claims
- 2348US5078377ADocument feederDUBOIS R CLARK·Filed 1990·Granted Jan 7, 1992·8 cites·2 claims
- 2447US4560156ADevice for drop-feeding sheet material into a printing apparatus or the likeDUBOIS R CLARK·Filed 1983·Granted Dec 24, 1985·6 cites·6 claims
- 2544USD271775SCopying and sorting apparatusGRADCO/DENDOKI INC·Filed 1981·Granted Dec 13, 1983·3 cites·1 claims
- 2640USD264220SCopying and sorting apparatusGRADCO/DENDOKI INC·Filed 1980·Granted May 4, 1982·2 cites·1 claims
- 2740USD263848SCopying and sorting apparatusGRADCO/DENDOKI INC·Filed 1980·Granted Apr 13, 1982·2 cites·1 claims
- 2835US4688783ABottom feed sheet feeding apparatusDUBOIS R CLARK·Filed 1985·Granted Aug 25, 1987·3 cites·15 claims
- 2933US4674738AStop-mechanism for document copierDUBOIS R CLARK·Filed 1985·Granted Jun 23, 1987·1 cites·1 claims
- 3031US4936563ADocument feeder with improved adjustable support control panelsDUBOIS R CLARK·Filed 1988·Granted Jun 26, 1990·2 cites·1 claims
- 3131US4925175AApparatus for feeding sheets to a copying machineDUBOIS R CLARK·Filed 1988·Granted May 15, 1990·1 cites·3 claims
- 3231USD264092SContinuous form feeding and copying apparatusGRADCO/DENDOKI INC·Filed 1980·Granted Apr 27, 1982·0 cites·1 claims
- 3331USD263850SContinuous form feeding and copying apparatusGRADCO/DENDOKI INC·Filed 1980·Granted Apr 13, 1982·0 cites·1 claims
- 3430USD265564SContinuous form feeding and copying apparatusGRADCO/DENDOKI INC·Filed 1980·Granted Jul 27, 1982·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →