Inventor · disambiguated record
John Semple Frater
Also filed as: FRATER JOHN · FRATER JOHN S · FRATER JOHN SEMPLE
4 granted patents·122 citations·filing 1981–2017
74Inventor score
Top patents by PatentIndex Score
4 records- 0178US5921748ACentrifugal pumpSYKES PUMPS AUSTRALIA PTY LTD·Filed 1996·Granted Jul 13, 1999·60 cites·12 claims
- 0278US4521151ACentrifugal slurry pumpJOY MFG HOLDINGS·Filed 1981·Granted Jun 4, 1985·62 cites·6 claims
- 0334US10907639B2Suction pipe inlet device for centrifugal pumpSMIDTH AS F L·Filed 2017·Granted Feb 2, 2021·0 cites·14 claims
- 0429US9657739B2Low-wear slurry pumpFRATER JOHN·Filed 2012·Granted May 23, 2017·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →