Inventor · disambiguated record
David J. Leffell
Also filed as: LEFFELL DAVID J
3 granted patents·170 citations·filing 1987–2002
73Inventor score
Top patents by PatentIndex Score
3 records- 0177US4894547AOptical method and apparatus for detecting and measuring aging, photoaging, dermal disease and pigmentation in skinUNIV YALE·Filed 1987·Granted Jan 16, 1990·158 cites·29 claims
- 0244US6552181B1Basal cell carcinoma tumor supressor geneUS HEALTH·Filed 1997·Granted Apr 22, 2003·11 cites·21 claims
- 0327US7317086B2Basal cell carcinoma tumor suppressor proteinUS HEALTH·Filed 2002·Granted Jan 8, 2008·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →