Inventor · disambiguated record
Ivor J. M. Fehr
Also filed as: FEHR IVOR J M · FEHR IVOR JOHN MARTIN
3 granted patents·103 citations·filing 1976–1983
72Inventor score
Top patents by PatentIndex Score
3 records- 0192US4580918AWriting instrument having plural nibs with one being retractableGILLETTE CO·Filed 1983·Granted Apr 8, 1986·90 cites·4 claims
- 0244US4091669APressure responsive apparatusBELL & HOWELL CO·Filed 1976·Granted May 30, 1978·9 cites·24 claims
- 0333US4547090AWriting instrument with nib operated valveGILLETTE CO·Filed 1983·Granted Oct 15, 1985·4 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →