Individual holder
FRAZIN LEON J
US·3 granted patents·1 pending application·443 citations·filing 1989–2018
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0177US5220924ADoppler-guided retrograde catheterization using transducer equipped guide wireFRAZIN LEON J·Filed 1991·Granted Jun 22, 1993·228 cites·15 claims
- 0267US5190045AMethod and device for doppler-guided and imaged retrograde catheterizationFRAZIN LEON J·Filed 1991·Granted Mar 2, 1993·135 cites·18 claims
- 0366US5038789AMethod and device for doppler-guided retrograde catheterizationFRAZIN LEON J·Filed 1989·Granted Aug 13, 1991·80 cites·18 claims
- 0444US2020093461A1Method and Apparatus for Using Doppler Guidance to Locate a Catheter Across a Stenotic Aortic ValveFRAZIN LEON J·Filed 2018·Application pending·0 cites
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