Inventor · disambiguated record
Douglas G. Ritchie
Also filed as: RITCHIE DOUGLAS G · SCHULMAN JOSEPH H
3 granted patents·1,405 citations·filing 1978–1990
81Inventor score
Top patents by PatentIndex Score
3 records- 0198US4237900AImplantable calibration means and calibration method for an implantable body transducerPACESETTER SYST·Filed 1979·Granted Dec 9, 1980·199 cites·21 claims
- 0293US5176662ASubcutaneous injection set with improved cannula mounting arrangementMINIMED TECHNOLOGIES LTD·Filed 1990·Granted Jan 5, 1993·1.2k cites·12 claims
- 0383US4237935AHydraulic pressure relief valve and fluid isolatorEATON CORP·Filed 1978·Granted Dec 9, 1980·43 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →