Inventor · disambiguated record
John E. Cromwell
Also filed as: CROMWELL JOHN E · CROMWELL JOHN EDWARD
5 granted patents·179 citations·filing 1974–1980
84Inventor score
Top patents by PatentIndex Score
5 records- 0195US3936295ABearing members having coated wear surfacesKOPPERS CO INC·Filed 1974·Granted Feb 3, 1976·79 cites·10 claims
- 0285US3938814ABearing member having a wear resistant coating on its bearing faceKOPPERS CO INC·Filed 1974·Granted Feb 17, 1976·40 cites·11 claims
- 0376US4334927APiston ring coatingsHYDE GLENN F·Filed 1980·Granted Jun 15, 1982·27 cites·4 claims
- 0464US4307890APiston ring with chrome-filled grooveCROMWELL JOHN E·Filed 1976·Granted Dec 29, 1981·17 cites·6 claims
- 0557US4176434AMethod of making piston rings with chrome-filled groovesKOPPERS CO INC·Filed 1978·Granted Dec 4, 1979·16 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →