Inventor · disambiguated record
Robert Hefner
Also filed as: HEFNER ROBERT · HEFNER ROBERT E · HEFNER SR ROBERT E
5 granted patents·2 pending applications·90 citations·filing 1982–2014
80Inventor score
Files withCATERPILLAR INC2CATERPILLAR IND INC1DOW CHEMICAL CO1HEFNER ROBERT E1SCHUNK GRAPHITE TECH LLC1
Top patents by PatentIndex Score
7 records- 0189US6389343B1Steering resistance deviceCATERPILLAR INC·Filed 2000·Granted May 14, 2002·47 cites·27 claims
- 0267US4485220APolyoxazoline modified unsaturated polyesteramidesDOW CHEMICAL CO·Filed 1982·Granted Nov 27, 1984·17 cites·18 claims
- 0358US10051717B2Electrostatic noise grounding system for use in a wind turbine and a rotor and wind turbine comprising the sameSCHUNK GRAPHITE TECH LLC·Filed 2014·Granted Aug 14, 2018·2 cites·26 claims
- 0452US5109696APowertrain performance assessment systemCATERPILLAR INC·Filed 1990·Granted May 5, 1992·22 cites·43 claims
- 0545US2004068062A1Hydroxyaliphatic functional epoxy resinsFiled 2003·Application pending·0 cites
- 0637US2008023250A1Ergonomic machine control consoleHEFNER ROBERT E·Filed 2006·Application pending·0 cites
- 0728US4694928AOperator restraint systemCATERPILLAR IND INC·Filed 1986·Granted Sep 22, 1987·2 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →