Inventor · disambiguated record
John A. Fernstrum, Jr.
Also filed as: FERNSTRUM JR JOHN A
3 granted patents·42 citations·filing 1990–1993
69Inventor score
Technology areasE03D
Top patents by PatentIndex Score
3 records- 0177US5390375AAdjustable toilet tank valve to regulate flush water volumeFiled 1993·Granted Feb 21, 1995·34 cites·5 claims
- 0222US5138725ATravel limiting flapper valve mounting adapterFRUGAL FELLOWS LIMITED PARTNER·Filed 1990·Granted Aug 18, 1992·5 cites·20 claims
- 0314US5175895AFlapper valve mounting adapterFIKE JEFFREY R·Filed 1990·Granted Jan 5, 1993·3 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →