Inventor · disambiguated record
Robert J. Purcell
Also filed as: PURCELL JR ROBERT J · PURCELL JR ROBERT JOSEPH · PURCELL ROBERT J
30 granted patents·1 pending application·651 citations·filing 1975–2021
97Inventor score
Files withCATERPILLAR INC14CATERPILLAR TRACTOR CO6ACTIVE MINERALS INT LLC4ACTIVE MINERALS INT3ACTIVE MINERALS INTERNAT1
Top patents by PatentIndex Score
31 records- 0193US4819999AEnd face seal assemblyCATERPILLAR INC·Filed 1987·Granted Apr 11, 1989·77 cites·17 claims
- 0292US4116081ASprocket profileCATERPILLAR TRACTOR CO·Filed 1977·Granted Sep 26, 1978·49 cites·10 claims
- 0390US4881609ASuspension mechanism for a track-type vehicleCATERPILLAR INC·Filed 1987·Granted Nov 21, 1989·60 cites·14 claims
- 0489US4923257ABelted vehicle suspension systemCATERPILLAR INC·Filed 1989·Granted May 8, 1990·52 cites·21 claims
- 0586US4967850ACombined tooth retractor and blade latching mechanismCATERPILLAR INC·Filed 1989·Granted Nov 6, 1990·48 cites·10 claims
- 0685US6444601B1Purified attapulgite clayITC INC·Filed 2000·Granted Sep 3, 2002·31 cites·16 claims
- 0784US9416052B2Concrete materials with modified rheology, methods of making, and uses thereofACTIVE MINERALS INT LLC·Filed 2014·Granted Aug 16, 2016·8 cites·20 claims
- 0882US11708307B2Composition to completely or partially replace ball clay in ceramics, method of making, and use thereofACTIVE MINERALS INT LLC·Filed 2021·Granted Jul 25, 2023·1 cites·20 claims
- 0982US4817746ASuspension mechanism for a track-type vehicleCATERPILLAR INC·Filed 1987·Granted Apr 4, 1989·39 cites·21 claims
- 1082US4111064ASprocket segments providing greater retention capabilitiesCATERPILLAR TRACTOR CO·Filed 1977·Granted Sep 5, 1978·32 cites·15 claims
- 1180US5334106AHydraulic recoil and belt tension control systemCATERPILLAR INC·Filed 1993·Granted Aug 2, 1994·30 cites·5 claims
- 1278US4874052ASuspension system for a vehicleCATERPILLAR INC·Filed 1987·Granted Oct 17, 1989·41 cites·16 claims
- 1378US4159857ATrack assembly with mid-pitch drive lug and replaceable railCATERPILLAR TRACTOR CO·Filed 1978·Granted Jul 3, 1979·23 cites·12 claims
- 1475US11198646B2Composition to completely or partially replace ball clay in ceramics, method of making, and use thereofACTIVE MINERALS INT LLC·Filed 2018·Granted Dec 14, 2021·1 cites·32 claims
- 1573US4290236AMethod and apparatus for manufacturing a contoured internal diameter bushingCATERPILLAR TRACTOR CO·Filed 1979·Granted Sep 22, 1981·14 cites·7 claims
- 1672US4230378AResilient support pad for crawler type vehiclesCATERPILLAR TRACTOR CO·Filed 1978·Granted Oct 28, 1980·20 cites·24 claims
- 1768US4819754AMultiple mode vehicle suspension systemCATERPILLAR INC·Filed 1987·Granted Apr 11, 1989·24 cites·11 claims
- 1866US9670011B2Method of transshipping solid particulates in an aqueous suspension of solid particulates using mineral suspending agentACTIVE MINERALS INT·Filed 2014·Granted Jun 6, 2017·1 cites·20 claims
- 1963US4854650ATrack recoil and tensioning mechanismCATERPILLAR INC·Filed 1988·Granted Aug 8, 1989·23 cites·10 claims
- 2062US9573849B2Backfill, methods of making, and use thereofACTIVE MINERALS INT·Filed 2014·Granted Feb 21, 2017·1 cites·20 claims
- 2154US5191951ABelted undercarriage assemblyCATERPILLAR INC·Filed 1991·Granted Mar 9, 1993·19 cites·15 claims
- 2252US7247263B2Fire-barrier compositionITC MINERALS & CHEMICALS·Filed 2003·Granted Jul 24, 2007·6 cites·10 claims
- 2352US5046565ABlade and linkage mechanism with downdraft controlPURCELL ROBERT J·Filed 1989·Granted Sep 10, 1991·15 cites·14 claims
- 2445US3982598AMultidirectional resilient suspension for vehiclesCATERPILLAR TRACTOR CO·Filed 1975·Granted Sep 28, 1976·11 cites·2 claims
- 2543US5433515AGuide rollers for flexible drive beltCATERPILLAR INC·Filed 1994·Granted Jul 18, 1995·11 cites·14 claims
- 2641US10683242B2Thixotropic suspension agent for plant nutrients or animal feed supplements: composition, method of making, and use thereofACTIVE MINERALS INT LLC·Filed 2016·Granted Jun 16, 2020·0 cites·20 claims
- 2739US5462345AResilient wheels with reinforcing ringsCATERPILLAR INC·Filed 1994·Granted Oct 31, 1995·8 cites·11 claims
- 2838US9511955B2Mineral suspending agent, method of making, and use thereofACTIVE MINERALS INT·Filed 2012·Granted Dec 6, 2016·0 cites·20 claims
- 2933US2016207701A1Dry granular material feeder and use thereofACTIVE MINERALS INTERNAT·Filed 2015·Application pending·0 cites
- 3030US5484248AEndless track transporter for semi-trailersCATERPILLAR INC·Filed 1994·Granted Jan 16, 1996·3 cites·8 claims
- 3130US4896586APiston stop assemblyCATERPILLAR INC·Filed 1988·Granted Jan 30, 1990·3 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →