Inventor · disambiguated record
Fred R. Gangelhoff
Also filed as: GANGELHOFF FRED R
3 granted patents·77 citations·filing 1976–1994
72Inventor score
Top patents by PatentIndex Score
3 records- 0174US5440953AKnife sharpenerTRU HONE CORP·Filed 1994·Granted Aug 15, 1995·64 cites·16 claims
- 0249USD247736SHolder for cutlery and sharpenerCHICAGO CUTLERY CONSUMER PRODUCTS INC·Filed 1976·Granted Apr 18, 1978·5 cites·1 claims
- 0348US4048760AScissors sharpenerGANGELHOFF FRED R·Filed 1976·Granted Sep 20, 1977·8 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →