Inventor · disambiguated record
John Fisher
Also filed as: FISHER JOHN · FISHER JOHN T · FISHER JOHN TIMOTHY
4 granted patents·1 pending application·46 citations·filing 1977–2021
73Inventor score
Top patents by PatentIndex Score
5 records- 0176US5002660ACompact aquarium filterAQUARIA INC·Filed 1988·Granted Mar 26, 1991·34 cites·1 claims
- 0251US2022040345A1Apparatus and method for preventing biofouling in hvac drain systemsHATCH TRANSF INC·Filed 2021·Application pending·0 cites
- 0338US5807699AApparatus and method for monitoring condition of a biomassTHAMES WATER UTILITIES·Filed 1993·Granted Sep 15, 1998·9 cites·17 claims
- 0436US11428728B1LED load voltage detection apparatus and methodHATCH TRANSF INC·Filed 2021·Granted Aug 30, 2022·0 cites·16 claims
- 0520US4111037ABathtub drain and overflow testing apparatusFISHER JOHN T·Filed 1977·Granted Sep 5, 1978·3 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →