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USPTO Patent Rankings Data through Dec 31, 2025
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David C. Spellmeyer — 3 Patents

CHChiron: 3 patents #187 of 583Top 35%
Alameda, CA: #422 of 1,067 inventorsTop 40%
California: #150,760 of 386,348 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
David C. Spellmeyer has been granted 3 US patents while listed as an inventor at Chiron. The first was granted in 1995 and the most recent in July 1996. David C. Spellmeyer ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list David C. Spellmeyer in Alameda, CA, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5536853 Opiate receptor ligands Walter H. Moos, Eric Martin, Ronald N. Zuckermann, Gregory Stauber, Kevin Shoemaker +1 more 1996-07-16 $17,619,000
5480871 Peptoid .alpha.-1 adrenergic receptor ligands Walter H. Moos, Eric Martin, Ronald N. Zuckermann, Gregory Stauber 1996-01-02 $27,704,000
5447916 Peptoid alpha-1 adrenergic receptor ligands Walter H. Moos, Eric Martin, Ronald N. Zuckermann, Gregory Stauber 1995-09-05 $45,988,000