Inventor · disambiguated record
John Krewalk
Also filed as: KREWALK JOHN J · KREWALK JOHN JOSEPH · KREWALK SR JOHN J
4 granted patents·1 pending application·259 citations·filing 1975–2007
82Inventor score
Top patents by PatentIndex Score
5 records- 0194US3932148AMethod and apparatus for making complex aspheric optical surfacesCRITERION MFG CO·Filed 1975·Granted Jan 13, 1976·123 cites·10 claims
- 0285US4682091ATelescope control systemBAUSCH & LOMB·Filed 1985·Granted Jul 21, 1987·71 cites·18 claims
- 0383US4063263AManually operated shutter attachmentCRITERION MFG CO·Filed 1976·Granted Dec 13, 1977·17 cites·10 claims
- 0481US7618330B2Golf clubKREWALK JOHN JOSEPH·Filed 2007·Granted Nov 17, 2009·48 cites·10 claims
- 0539US2007142120A1Golf clubKREWALK JOHN J·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →