Inventor · disambiguated record
Gerald Grotsch
Also filed as: GROETSCH GERALD · GROTSCH GERALD
6 granted patents·202 citations·filing 1986–1989
86Inventor score
Technology areasB43K
Files withSTAEDTLER FA J S6
Top patents by PatentIndex Score
6 records- 0194USD319845SMechanical penSTAEDTLER FA J S·Filed 1989·Granted Sep 10, 1991·75 cites·1 claims
- 0294USD319844SBall point penSTAEDTLER FA J S·Filed 1989·Granted Sep 10, 1991·61 cites·1 claims
- 0389USD303992SRetractable holder for an eraser or similar articleSTAEDTLER FA J S·Filed 1986·Granted Oct 10, 1989·34 cites·1 claims
- 0474USD320618SWriting and drawing instrumentSTAEDTLER FA J S·Filed 1989·Granted Oct 8, 1991·16 cites·1 claims
- 0546US4892428ATip removal deviceSTAEDTLER FA J S·Filed 1987·Granted Jan 9, 1990·12 cites·12 claims
- 0631US4981383ADevice for screwing a writing instrument tip into a writing fluid reservoirSTAEDTLER FA J S·Filed 1989·Granted Jan 1, 1991·4 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →