Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Siqun Xu — 19 Patents

DIDivergence: 11 patents #7 of 25Top 30%
CWCarnegie Institution Of Washington: 7 patents #8 of 90Top 9%
UMUniversity Of Massachusetts: 6 patents #106 of 1,810Top 6%
Ballwin, MO: #28 of 595 inventorsTop 5%
Missouri: #862 of 23,789 inventorsTop 4%
Overall (All Time): #229,345 of 4,157,543Top 6%
19 Patents All Time
Siqun Xu has been granted 19 US patents while listed as an inventor at Divergence. The first was granted in 2003 and the most recent in July 2019. Siqun Xu ranks #229,345 of 4,157,543 US inventors in our database (top 5.5%). Patent records list Siqun Xu in Ballwin, MO, US.

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10358653 Genetic inhibition by double-stranded RNA Andrew Fire, Stephen Kostas, Mary Montgomery, Lisa Timmons, Hiroaki Tabara +2 more 2019-07-23
9102939 Genetic inhibition by double-stranded RNA Andrew Fire, Stephen Kostas, Mary Montgomery, Lisa Timmons, Hiroaki Tabara +2 more 2015-08-11
8580754 Genetic inhibition by double-stranded RNA Andrew Fire, Stephen Kostas, Mary Montgomery, Lisa Timmons, Hiroaki Tabara +2 more 2013-11-12
8283329 Genetic inhibition of double-stranded RNA Andrew Fire, Stephen Kostas, Mary Montgomery, Lisa Timmons, Hiroaki Tabara +2 more 2012-10-09
8198060 Nematode phosphoethanolamine N-methyltransferase-like sequences Deryck J. Williams, Merry B. McLaird, Michelle Coutu Hresko, Anita M. Frevert, Ronald E. Worthington +3 more 2012-06-12
7993894 Nematode fatty acid desaturase-like sequences Andrew P. Kloek, Deryck J. Williams, Merry B. McLaird, John D. Bradley, Jennifer A. Davila-Aponte +1 more 2011-08-09
7867749 Nematode phosphoethanolamine N-methyltransferase-like sequences Deryck J. Williams, Merry B. McLaird, Michelle Coutu Hresko, Anita M. Frevert-Thompson, Ronald E. Worthington +3 more 2011-01-11
7666642 Nematode fatty acid desaturase-like sequences Andrew P. Kloek, Deryck J. Williams, Merry B. McLaird, John D. Bradley, Jennifer A. Davila-Aponte +1 more 2010-02-23
7622633 Genetic inhibition by double-stranded RNA Andrew Fire, Stephen Kostas, Mary Montgomery, Lisa Timmons, Hiroaki Tabara +2 more 2009-11-24 $40,000,000
7560438 Genetic inhibition by double-stranded RNA Andrew Fire, Stephen Kostas, Mary Montgomery, Lisa Timmons, Hiroaki Tabara +2 more 2009-07-14
7538095 Genetic inhibition by double-stranded RNA Andrew Fire, Stephen Kostas, Mary Montgomery, Lisa Timmons, Hiroaki Tabara +2 more 2009-05-26
7479382 Nematode fatty acid desaturase-like sequences Andrew P. Kloek, Deryck J. Williams, Merry B. McLaird, John D. Bradley, Jennifer A. Davila-Aponte +1 more 2009-01-20
7442533 Nematode phosphoethanolamine N-methyltransferase-like sequences Deryck J. Williams, Merry B. McLaird, Michelle Coutu Hresko, Anita M. Frevert, Ronald E. Worthington +3 more 2008-10-28
7339044 Nematode PAN and ZP receptor-like sequences Michelle Coutu Hresko, Merry B. McLaird, Deryck J. Williams, Anita M. Frevert, Brandi Chiapelli +4 more 2008-03-04
7265204 Nematode PAN and ZP receptor-like sequences Michelle Coutu Hresko, Merry B. McLaird, Deryck J. Williams, Anita M. Frevert, Brandi Chiapelli +4 more 2007-09-04
7250500 Nematode PAN and ZP receptor-like sequences Michelle Coutu Hresko, Merry B. McLaird, Deryck J. Williams, Anita M. Frevert, Brandi Chiapelli +4 more 2007-07-31
6936693 Nematode PAN and ZP receptor-like sequences Michelle Coutu Hresko, Merry B. McLaird, Deryck J. Williams, Anita M. Frevert, Brandi Chiapelli +4 more 2005-08-30
6875595 Nematode fatty acid desaturase-like sequences Andrew P. Kloek, Deryck J. Williams, Merry B. McLaird, John D. Bradley, Jennifer A. Davila-Aponte +1 more 2005-04-05
6506559 Genetic inhibition by double-stranded RNA Andrew Fire, Stephen Kostas, Mary Montgomery, Lisa Timmons, Hiroaki Tabara +2 more 2003-01-14