Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
NK

Narender Kumar Kalyan — 4 Patents in 2021

Pfizer: 4 patents #10 of 325Top 4%
King of Prussia, PA: #3 of 70 inventorsTop 5%
Pennsylvania: #365 of 7,685 inventorsTop 5%
Overall (2021): #43,262 of 548,734Top 8%
4 Patents 2021

Issued Patents 2021

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11208633 Compositions and methods relating to a mutant Clostridium difficile toxin Jason Arnold Lotvin, Annaliesa Sybil Anderson, Robert G. K. Donald, Michael James Flint, Kathrin Ute Jansen +4 more 2021-12-28
RE48862 Compositions relating to a mutant Clostridium difficile toxin and methods thereof Maninder K. Sidhu, Annaliesa Sybil Anderson, Robert G. K. Donald, Kathrin Ute Jansen, Justin Keith Moran +2 more 2021-12-28
RE48863 Compositions relating to a mutant Clostridium difficile toxin and methods thereof Annaliesa Sybil Anderson, Maninder K. Sidhu, Robert G. K. Donald, Kathrin Ute Jansen, Justin Keith Moran +2 more 2021-12-28
10982198 Compositions and methods relating to a mutant Clostridium difficile toxin Jason Arnold Lotvin, Annaliesa Sybil Anderson, Robert G. K. Donald, Michael James Flint, Kathrin Ute Jansen +4 more 2021-04-20