Inventor · disambiguated record
David L. Hageman
Also filed as: HAGEMAN DAVID L
4 granted patents·10 citations·filing 1980–1995
67Inventor score
Files withPFIZER4
Top patents by PatentIndex Score
4 records- 0142US5859011ADihydropyridine derivatives as bradykinin antagonistPFIZER·Filed 1995·Granted Jan 12, 1999·5 cites·13 claims
- 0239US4361513AEsters of penicillanic acid sulfonePFIZER·Filed 1980·Granted Nov 30, 1982·2 cites·10 claims
- 0332US4375434AProcess for 6'-amino-penicillanoyloxymethyl penicillanate 1,1-dioxidePFIZER·Filed 1982·Granted Mar 1, 1983·3 cites·6 claims
- 0429US4474698AProcess for preparing esters of penicillanic acid sulfonePFIZER·Filed 1982·Granted Oct 2, 1984·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →