Inventor · disambiguated record
Duane P. Stark
Also filed as: STARK DUANE P
3 granted patents·362 citations·filing 1988–1996
79Inventor score
Top patents by PatentIndex Score
3 records- 0193US4938474AExercise apparatus and method which simulate stair climbingLAGUNA TECTRIX INC·Filed 1988·Granted Jul 3, 1990·143 cites·35 claims
- 0292US4949993AExercise apparatus having high durability mechanism for user energy transmissionLAGUNA TECTRIX INC·Filed 1989·Granted Aug 21, 1990·161 cites·10 claims
- 0374US5643146AStationary exercise device having load-controlling braking systemTECTRIX FITNESS EQUIPMENT·Filed 1996·Granted Jul 1, 1997·58 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →