Inventor · disambiguated record
Hugo Vifian
Also filed as: VIFIAN HUGO
7 granted patents·220 citations·filing 1974–1990
87Inventor score
Files withHEWLETT PACKARD CO7
Top patents by PatentIndex Score
7 records- 0191US5062703AMethod and apparatus for measuring the length of, or distances to discontinuities in, an optical transmission mediumHEWLETT PACKARD CO·Filed 1990·Granted Nov 5, 1991·79 cites·20 claims
- 0285US3986113ATwo channel test instrument with active electronicphase shift meansHEWLETT PACKARD CO·Filed 1974·Granted Oct 12, 1976·34 cites·9 claims
- 0383US4024460AElectronic line stretcherHEWLETT PACKARD CO·Filed 1975·Granted May 17, 1977·35 cites·3 claims
- 0481US4921347AMethod and apparatus for calibrating a lightwave component measurement systemHEWLETT PACKARD CO·Filed 1988·Granted May 1, 1990·38 cites·20 claims
- 0565US5041997ALightwave component analyzerHEWLETT PACKARD CO·Filed 1989·Granted Aug 20, 1991·25 cites·20 claims
- 0644US4875859AMethod and apparatus for guiding a user during setup of a signal measurement systemHEWLETT PACKARD CO·Filed 1988·Granted Oct 24, 1989·9 cites·20 claims
- 0728US4092724APolar converterHEWLETT PACKARD CO·Filed 1976·Granted May 30, 1978·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →