Inventor · disambiguated record
Fred Petersen
Also filed as: PETERSEN FRED
3 granted patents·68 citations·filing 1978–1986
73Inventor score
Top patents by PatentIndex Score
3 records- 0168US4780217AMethod for introducing oxygen into water and an apparatus for implementing the said methodPETERSEN FRED·Filed 1986·Granted Oct 25, 1988·41 cites·23 claims
- 0261US4316721AMethod for producing a thrust in manoeuvering engines for a watercraft and a manoeuvering engine constructed for the sameJASTRAM WERKE·Filed 1978·Granted Feb 23, 1982·15 cites·13 claims
- 0354US4535714ARudder rotor for watercraft and floating equipmentJASTRAM WERKE·Filed 1979·Granted Aug 20, 1985·12 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →