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

Robert Stevenson

Astrazeneca Ab: 1 patents #1,022 of 1,971Top 55%
PLPharm-Eco Laboratories: 1 patents #17 of 27Top 65%
Merck: 1 patents #5,419 of 9,382Top 60%
BPBeecham Group Plc: 1 patents #95 of 180Top 55%
Dorking, MA: #1 of 1 inventorsTop 100%
Overall (All Time): #1,021,615 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7947667 Process and intermediates for the production of 7-substituted antiestrogens Fraser Witton Kerr, Anthony Raymond Lane, Eve Joanne Brazier, Phillip Hogan, David Laffan 2011-05-24
6133453 Method for making substituted indoles Milind P. Sant, Reem Haider, Ahmed Hilmy, Emile Al-Farhan 2000-10-17
5561999 Ring forming method 1996-10-08
4595693 Method of use of 2,5-diaryl tetrahydrofurans and analogs thereof as PAF-antagonists Tesfaye Biftu, Thomas W. Doebber, San-Bao Hwang, Thomas R. Beattie, Tsung-Ying Shen 1986-06-17
4198503 3-Carbamoyl substituted-7-ureido substituted cephalosporins Norman H. Rogers 1980-04-15