Inventor · disambiguated record
Yvan Greiner
Also filed as: GREINER YVAN
2 granted patents·12 citations·filing 1976–1979
56Inventor score
Files withPORTESCAP2
Top patents by PatentIndex Score
2 records- 0139US4012941AMethod of and apparatus for measuring the amplitude of oscillation of the balance of a timepiece movementPORTESCAP·Filed 1976·Granted Mar 22, 1977·7 cites·18 claims
- 0232US4335596ADevice for measuring the operation of a timepiece movementPORTESCAP·Filed 1979·Granted Jun 22, 1982·5 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →