Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Marc Whitlow — 20 Patents

ENEnzon: 19 patents #4 of 52Top 8%
EPEnzon Pharmaceuticals: 1 patents #23 of 41Top 60%
Pinole, CA: #7 of 122 inventorsTop 6%
California: #28,827 of 386,348 inventorsTop 8%
Overall (All Time): #225,514 of 4,157,543Top 6%
20 Patents All Time

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
7632504 Polyalkylene oxide-modified single chain polypeptides Robert Shorr, David Filpula, Lihsyng Standford Lee 2009-12-15
7150872 Polyalkylene oxide-modified single chain polypeptides Robert Shorr, David Filpula, Lihsyng Standford Lee 2006-12-19
6872393 Polyalkylene oxide-modified single chain polypeptides Robert Shorr, David Filpula, Lihsyng Standford Lee 2005-03-29
6824782 Polyalkylene oxide-modified single chain polypeptides Robert Shorr, David Filpula, Lihsyng Stanford Lee 2004-11-30
6764853 Method for targeted delivery of nucleic acids David Filpula, Maoliang Wang 2004-07-20
6743896 Single-chain antigen-binding proteins capable of glycosylation, production and uses thereof David Filpula, Maoliang Wang, Robert Shorr, Lihsyng Stanford Lee 2004-06-01
6743908 Single-chain antigen-binding proteins capable of glycosylation, production and uses thereof David Filpula, Maoliang Wang, Robert Shorr, Lihsyng Stanford Lee 2004-06-01
6692942 Single-chain polypeptides for targeted delivery of nucleic acids David Filpula, Maoliang Wang 2004-02-17
6515110 Multivalent antigen-binding proteins James F. Wood, Karl D. Hardman, Robert E. Bird, David Filpula, Michele Rollence 2003-02-04
6333396 Method for targeted delivery of nucleic acids David Filpula, Maoliang Wang 2001-12-25
6323322 Single-chain antigen-binding proteins capable of glycosylation, production and uses thereof David Filpula, Maoliang Wang, Robert Shorr, Lihsyng Stanford Lee 2001-11-27
6121424 Multivalent antigen-binding proteins James F. Wood, Karl D. Hardman, Robert E. Bird, David Filpula, Michele Rollence 2000-09-19
6103889 Nucleic acid molecules encoding single-chain antigen-binding proteins Karl D. Hardman, Robert E. Bird, David Filpula 2000-08-15
6027725 Multivalent antigen-binding proteins James F. Wood, Karl D. Hardman, Robert E. Bird, David Filpula, Michele Rollence 2000-02-22
6025165 Methods for producing multivalent antigen-binding proteins James F. Wood, Karl D. Hardman, Robert E. Bird, David Filpula, Michele Rollence 2000-02-15
5990275 Linker and linked fusion polypeptides David Filpula 1999-11-23
5869620 Multivalent antigen-binding proteins James F. Wood, Karl D. Hardman, Robert E. Bird, David Filpula, Michele Rollence 1999-02-09
5856456 Linker for linked fusion polypeptides David Filpula 1999-01-05
5767260 Antigen-binding fusion proteins David Filpula, Robert Shorr 1998-06-16
5763733 Antigen-binding fusion proteins David Filpula, Robert Shorr 1998-06-09