Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Da Duan — 19 Patents

COCodexis: 19 patents #44 of 250Top 20%
SSSociete Des Produits Nestle S.A.: 2 patents #378 of 1,324Top 30%
Foster City, CA: #213 of 2,058 inventorsTop 15%
California: #31,067 of 386,348 inventorsTop 9%
Overall (All Time): #229,345 of 4,157,543Top 6%
19 Patents All Time
Da Duan has been granted 19 US patents while listed as an inventor at Codexis. The first was granted in 2020 and the most recent in September 2025. Da Duan ranks #229,345 of 4,157,543 US inventors in our database (top 5.5%). Patent records list Da Duan in Foster City, CA, US.

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12421509 Engineered phosphopentomutase variant enzymes Scott J. Novick, Xiang Yi, Nikki Dellas, Oscar Alvizo, Jovana Nazor +12 more 2025-09-23
12252723 Ketoreductase polypeptides and polynucleotides Jeffrey C. Moore, Jack Liang, Jonathan S. Penfield, Jovana Nazor, Nikki Dellas +5 more 2025-03-18
12110493 Engineered purine nucleoside phosphorylase variant enzymes Scott J. Novick, Nikki Dellas, Vesna Mitchell, Jovana Nazor, Oscar Alvizo +8 more 2024-10-08 $1,823,000
12084697 Penicillin-G acylases Oscar Alvizo, David Elgart, Robert Kevin Orr, James Nicholas Riggins, Anna Fryszkowska +5 more 2024-09-10 $4,325,000
12071642 Engineered amylase variants Chinping Chng, Nikki Dellas, Ravi David Garcia, Harvinder Chagger Maniar 2024-08-27 $4,967,000
12012620 Peroxidase activity towards 10-acetyl-3,7-dihydroxyphenoxazine Auric Anthony Sowell-Kantz, Aksiniya Lyubenova Petkova, Jovana Nazor, Nandhitha Subramanian, Oscar Alvizo 2024-06-18 $2,402,000
11913037 Engineered adenylate kinase variant enzymes Auric Anthony Sowell-Kantz, Aksiniya Lyubenova Petkova, Oscar Alvizo 2024-02-27 $2,083,000
11845968 Engineered deoxyribose-phosphate aldolases Oscar Alvizo, Jovana Nazor, Harvinder Chagger Maniar, James Nicholas Riggins, Jonathan Vroom +8 more 2023-12-19 $4,375,000
11795445 Engineered phosphopentomutase variant enzymes Scott J. Novick, Xiang Yi, Nikki Dellas, Oscar Alvizo, Jovana Nazor +12 more 2023-10-24 $2,094,000
11767519 Engineered amylase variants Chinping Chng, Nikki Dellas, Ravi David Garcia, Harvinder Chagger Maniar 2023-09-26 $2,038,000
11746369 Ketoreductase polypeptides and polynucleotides Jeffrey C. Moore, Jack Liang, Jonathan S. Penfield, Jovana Nazor, Nikki Dellas +5 more 2023-09-05 $1,974,000
11643642 Penicillin-g acylases Rama Voladri, Christopher Michael Micklitsch, Oscar Alvizo, Jovana Nazor, Judy Victoria Antonio Viduya +8 more 2023-05-09 $3,897,000
11591588 Penicillin-G acylases Oscar Alvizo, David Elgart, Robert Kevin Orr, James Nicholas Riggins, Anna Fryszkowska +5 more 2023-02-28 $3,058,000
11274286 Engineered deoxyribose-phosphate aldolases Oscar Alvizo, Jovana Nazor, Harvinder Chagger Maniar, James Nicholas Riggins, Jonathan Vroom +8 more 2022-03-15 $16,962,000
11162105 Engineered purine nucleoside phosphorylase variant enzymes Scott J. Novick, Nikki Dellas, Vesna Mitchell, Jovana Nazor, Oscar Alvizo +8 more 2021-11-02 $33,247,000
11034948 Engineered phosphopentomutase variant enzymes Scott J. Novick, Xiang Yi, Nikki Dellas, Oscar Alvizo, Jovana Nazor +12 more 2021-06-15 $8,638,000
11021729 Ketoreductase polypeptides and polynucleotides Jeffrey C. Moore, Jack Liang, Jonathan S. Penfield, Jovana Nazor, Nikki Dellas +5 more 2021-06-01 $17,518,000
10865402 Penicillin-G acylases Oscar Alvizo, David Elgart, Robert Kevin Orr, James Nicholas Riggins, Anna Fryszkowska +5 more 2020-12-15 $15,023,000
10745681 Penicillin-G acylases Oscar Alvizo, David Elgart, Robert Kevin Orr, James Nicholas Riggins, Anna Fryszkowska +5 more 2020-08-18 $9,290,000