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USPTO Patent Rankings Data through Dec 31, 2025
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David A. Yeowell — 15 Patents

FIFibrogen: 10 patents #11 of 77Top 15%
BWBurroughs Wellcome: 5 patents #33 of 312Top 15%
The General Hospital: 1 patents #1,411 of 3,021Top 50%
Chapel Hill, NC: #235 of 1,999 inventorsTop 15%
North Carolina: #3,282 of 45,564 inventorsTop 8%
Overall (All Time): #307,048 of 4,157,543Top 8%
15 Patents All Time
David A. Yeowell has been granted 15 US patents while listed as an inventor at Fibrogen. The first was granted in 1980 and the most recent in April 2019. David A. Yeowell ranks #307,048 of 4,157,543 US inventors in our database (top 7.4%). Patent records list David A. Yeowell in Chapel Hill, NC, US.

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10272078 Crystalline forms of a prolyl hydroxylase inhibitor Claudia Witschi, Jung Min Park, Michael D. Thompson, Michael John Martinelli, Michael P. Arend 2019-04-30 $40,334,000
10118897 Crystalline forms of a prolyl hydroxylase inhibitor Claudia Witschi, Jung Min Park, Michael D. Thompson, Michael John Martinelli, Michael P. Arend 2018-11-06 $37,670,000
9918977 Crystalline forms of a prolyl hydroxylase inhibitor Claudia Witschi, Jung Min Park, Michael D. Thompson, Michael John Martinelli, Michael P. Arend 2018-03-20 $32,708,000
9617218 Crystalline forms of a prolyl hydroxylase inhibitor Claudia Witschi, Jung Min Park, Michael D. Thompson, Michael John Martinelli, Michael P. Arend 2017-04-11 $21,279,000
9371288 Crystalline forms of a prolyl hydroxylase inhibitor Claudia Witschi, Jung Min Park, Michael D. Thompson, Michael John Martinelli, Michael P. Arend 2016-06-21 $14,407,000
9115085 Crystalline forms of a prolyl hydroxylase inhibitor Claudia Witschi, Jung Min Park, Michael D. Thompson, Michael John Martinelli, Michael P. Arend 2015-08-25 $10,087,000
9034643 Connective tissue growth factor antibodies Al Y. Lin, Thomas B. Neff, Noelynn A. Oliver, William Usinger, Qingjian Wang 2015-05-19 $15,648,000
8883823 Crystalline forms of a prolyl hydroxylase inhibitor Claudia Witschi, Jung Min Park, Michael D. Thompson, Michael John Martinelli, Michael P. Arend 2014-11-11
7871617 Antibodies that bind to a portion of the VWC domain of connective tissue growth factor Al Y. Lin, Thomas B. Neff, Noelynn A. Oliver, William Usinger, Qingjian Wang 2011-01-18
7405274 Connective tissue growth factor antibodies Al Y. Lin, Thomas B. Neff, Noelynn A. Oliver, William Usinger, Qingjian Wang 2008-07-29
4761418 Novel compounds Roy A. Swaringen, Jr., Hassan A. El-Sayad, John J. Savarese 1988-08-02 $9,323,000
4701460 Long duration neuromuscular blocking agents Hassan A. El-Sayad, Roy A. Swaringen, Jr. 1987-10-20 $8,448,000
4500711 Synthesis of leucovorin James C. Wisowaty, Roy A. Swaringen, Jr. 1985-02-19 $3,030,000
4491665 Method of preparing isomers of bis isoquinolinium compounds Hassan A. El-Sayad, Roy A. Swaringen, Jr. 1985-01-01
4216319 Synthesis of 2,4-diamino-5-benzylpyrimidines using benzyl cyanoacetal intermediates Roy A. Swaringen, Jr. 1980-08-05 $36,000