Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Hiroko Masamune — 14 Patents

Pfizer: 9 patents #561 of 5,153Top 15%
VTViking Therapeutics: 4 patents #3 of 11Top 30%
San Diego, CA: #3,169 of 23,606 inventorsTop 15%
California: #43,920 of 386,348 inventorsTop 15%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Hiroko Masamune has been granted 14 US patents while listed as an inventor at Pfizer. The first was granted in 1993 and the most recent in December 2025. Hiroko Masamune ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Hiroko Masamune in San Diego, CA, US.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12508267 Isotopically-labelled trapidil derivatives Aarash BORDBAR, Warren Wade 2025-12-30
12227533 Crystalline forms and methods of producing crystalline forms of a compound Brian Lian, Geoffrey E. Barker 2025-02-18
12102646 Compositions for the treatment of fibrosis and inflammation Brian Lian, Geoffrey E. Barker 2024-10-01 $253,299,000
11787828 Crystalline forms and methods of producing crystalline forms of a compound Brian Lian, Geoffrey E. Barker 2023-10-17 $31,350,000
11707472 Compositions for the treatment of fibrosis Brian Lian, Geoffrey E. Barker 2023-07-25 $42,218,000
6803457 Compounds for the treatment of ischemia Michael P. DeNinno, Robert Scott 2004-10-12 $203,339,000
6300316 C-4 substituted macrolide antibiotics Katherine E. Brighty, Takushi Kaneko, Robert Linde, Paul Robert McGuirk, Wei-Guo Su +2 more 2001-10-09 $572,735,000
6025350 "C-4"" substituted macrolide antibiotics" Wei-Guo Su, Bingwei Yang 2000-02-15 $1,021,692,000
5814651 Catechol diethers as selective PDE.sup.IV inhibitors Allen J. Duplantier, James F. Eggler, Anthony Marfat 1998-09-29 $346,440,000
5789408 Antiviral thiazoles Edward F. Kleinman, Vinod Parikh 1998-08-04 $191,834,000
5502072 Substituted oxindoles 1996-03-26 $87,402,000
5384318 Substituted sulfonamides and related compounds in the treatment of asthma, arthritis and related diseases James F. Eggler, Anthony Marfat, Lawrence S. Melvin, Jr. 1995-01-24 $58,992,000
5298512 Substituted chromans and their use in the treatment of asthma, arthritis and related diseases James F. Eggler, Anthony Marfat, Lawrence S. Melvin, Jr. 1994-03-29 $28,033,000
5248685 Substituted 1-[3-(heteroarylmethoxy)phenyl]alkanols and related compounds in the treatment of asthma James F. Eggler, Anthony Marfat, Lawrence S. Melvin, Jr. 1993-09-28 $27,301,000