Inventor · disambiguated record
Hugh W. Grenfell
Also filed as: GRENFELL HUGH W · GRENFELL HUGH WILLMOTT
3 granted patents·22 citations·filing 1976–1990
65Inventor score
Top patents by PatentIndex Score
3 records- 0152US4113469ARefining molten metalBRITISH STEEL CORP·Filed 1977·Granted Sep 12, 1978·4 cites·16 claims
- 0234US5242356AExercise and toning apparatusGRENFELL HUGH W·Filed 1990·Granted Sep 7, 1993·17 cites·2 claims
- 0325US4104058ASteelmakingBRITISH STEEL CORP·Filed 1976·Granted Aug 1, 1978·1 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →