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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Daniel H. Feldman — 8 Patents

SNSibia Neurosciences: 5 patents #11 of 41Top 30%
Merck: 2 patents #3,930 of 9,382Top 45%
San Diego, CA: #5,211 of 23,606 inventorsTop 25%
California: #74,834 of 386,348 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Daniel H. Feldman has been granted 8 US patents while listed as an inventor at Sibia Neurosciences. The first was granted in 1995 and the most recent in August 2008. Daniel H. Feldman ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Daniel H. Feldman in San Diego, CA, US.

Patents per Year

Patents granted per year, 1995 to 2008Bar chart with a peak of 3 patents in 1998.peak 31995: 1 patents19951998: 3 patents19981999: 2 patents19992003: 1 patents20032008: 1 patents2008

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7414110 Human calcium channel compositions and methods Michael M. Harpold, Steven B. Ellis, Mark E. Williams, Ann F. McCue, Alison J. Gillespie +1 more 2008-08-19 $115,202,000
6653097 Human calcium channel compositions and methods Michael M. Harpold, Steven B. Ellis, Mark E. Williams, Ann F. McCue, Alison J. Gillespie +1 more 2003-11-25 $137,295,000
5876958 Assays of cells expressing human calcium channels containing .alpha..sub.1 .beta. subunits Michael M. Harpold, Steven B. Ellis, Mark E. Williams, Ann F. McCue, Robert Brenner 1999-03-02 $1,313,000
5874236 DNA encoding human calcium channel .alpha.-.sub.1A, .beta..sub.1, .beta.-.sub.2, and .beta.-.sub.4 subunits, and assays using cells that express the subunits Michael M. Harpold, Steven B. Ellis, Mark E. Williams, Ann F. McCue, Robert Brenner 1999-02-23 $1,227,000
5851824 Human calcium channel .alpha.-1C/.alpha.-1D, .alpha.-2, .beta.-1, and .gamma.subunits and cells expressing the DNA Michael M. Harpold, Steven B. Ellis, Mark E. Williams, Ann F. McCue, Robert Brenner 1998-12-22 $632,000
5846757 Human calcium channel .alpha..sub.1, .alpha..sub.2, and .beta. subunits and assays using them Michael M. Harpold, Steven B. Ellis, Mark E. Williams, Ann F. McCue, Robert Brenner 1998-12-08 $1,092,000
5792846 Human calcium channel compositions and methods Michael M. Harpold, Steven B. Ellis, Mark E. Williams, Ann F. McCue, Robert Brenner 1998-08-11 $737,000
5429921 Assays for agonists and antagonists of recombinant human calcium channels Michael M. Harpold, Steven B. Ellis, Mark E. Williams, Ann F. McCue, Robert Brenner 1995-07-04