Inventor · disambiguated record
Frederick C. Duthweiler
Also filed as: DUTHWEILER FREDERICK C
3 granted patents·58 citations·filing 1976–1985
73Inventor score
Files withUNION OIL CO3
Top patents by PatentIndex Score
3 records- 0163US4676695AMethod for preventing thaw settlement along offshore artic pipelinesUNION OIL CO·Filed 1985·Granted Jun 30, 1987·30 cites·53 claims
- 0253US4048808AIce islands and method for forming sameUNION OIL CO·Filed 1976·Granted Sep 20, 1977·15 cites·12 claims
- 0346US4192630AMethod and apparatus for building ice islandsUNION OIL CO·Filed 1978·Granted Mar 11, 1980·13 cites·27 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →