Inventor · disambiguated record
Francis V. Marchal
Also filed as: MARCHAL FRANCIS · MARCHAL FRANCIS V · WIEGER JOSEPH W
5 granted patents·95 citations·filing 1977–2015
82Inventor score
Files withAUTOCLAVE ENG INC1BER LO MANUFACTURING COMPANY I1MARCHAL FRANCIS V1SKINNER ENGINE CO1STORZ KARL GMBH & CO KG1
Top patents by PatentIndex Score
5 records- 0171US5386965AHigh pressure flow valve with pressure assist valve sealBER LO MANUFACTURING COMPANY I·Filed 1993·Granted Feb 7, 1995·41 cites·22 claims
- 0271US4155476AHanging reaction frame assemblyAUTOCLAVE ENG INC·Filed 1977·Granted May 22, 1979·23 cites·5 claims
- 0351US4460157AHigh pressure ball valveSKINNER ENGINE CO·Filed 1981·Granted Jul 17, 1984·14 cites·14 claims
- 0450USD798448SSialendoscopeSTORZ KARL GMBH & CO KG·Filed 2015·Granted Sep 26, 2017·6 cites·1 claims
- 0539US4757839AHigh pressure relief valveMARCHAL FRANCIS V·Filed 1986·Granted Jul 19, 1988·11 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →