Inventor · disambiguated record
Martin E. Wacha
Also filed as: WACHA MARTIN E
6 granted patents·87 citations·filing 1977–1994
82Inventor score
Technology areasB43K
Top patents by PatentIndex Score
6 records- 0189USD288825SAutomatic pencilTHOMPSON JOHN·Filed 1984·Granted Mar 17, 1987·29 cites·1 claims
- 0286USD286789SMechanical pencilPARKER PEN BV·Filed 1984·Granted Nov 18, 1986·24 cites·1 claims
- 0373US4529328AProjection-retraction mechanism for a writing instrumentPARKER PEN CO·Filed 1983·Granted Jul 16, 1985·31 cites·8 claims
- 0429USD252634SBarrel tip assembly for a ball point penTHE PARKER PEN COMPANY·Filed 1977·Granted Aug 14, 1979·1 cites·1 claims
- 0529USD252464SFountain pen nibTHE PARKER PEN COMPANY·Filed 1977·Granted Jul 24, 1979·1 cites·1 claims
- 0627US5551788AWriting instrumentFiled 1994·Granted Sep 3, 1996·1 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →