Inventor · disambiguated record
Donald Hatch
Also filed as: HATCH DONALD · HATCH DONALD C
3 granted patents·80 citations·filing 1977–1991
73Inventor score
Top patents by PatentIndex Score
3 records- 0175US4121925AMethod of producing grey cast iron brake rotors with uniform friction and wear characteristicsFERODO LTD·Filed 1977·Granted Oct 24, 1978·12 cites·4 claims
- 0268US5163887AWeight collarHATCH DONALD C·Filed 1991·Granted Nov 17, 1992·54 cites·6 claims
- 0358US4271937AValves for hydraulic brakesFERODO LTD·Filed 1977·Granted Jun 9, 1981·14 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →