Inventor · disambiguated record
Roger W. Johnson
Also filed as: JOHNSON ROGER W · JOHNSON ROGER WILLARD
5 granted patents·198 citations·filing 1975–2002
84Inventor score
Top patents by PatentIndex Score
5 records- 0195US4249382AExhaust gas recirculation system for turbo charged enginesCATERPILLAR TRACTOR CO·Filed 1978·Granted Feb 10, 1981·95 cites·4 claims
- 0280US5118562AVibration damper having extended temperature range and low temperature shock resistanceMINNESOTA MINING & MFG·Filed 1990·Granted Jun 2, 1992·38 cites·13 claims
- 0374US5403426AProcess of making cardable hydrophobic polypropylene fiberHERCULES INC·Filed 1993·Granted Apr 4, 1995·32 cites·60 claims
- 0458US3972644AVane control arrangement for variable area turbine nozzleCATERPILLAR TRACTOR CO·Filed 1975·Granted Aug 3, 1976·26 cites·5 claims
- 0550US6882956B2Lapping plate topography systemIBM·Filed 2002·Granted Apr 19, 2005·7 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →