Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert Stevenson — 5 Patents

Astrazeneca Ab: 1 patents #1,022 of 1,971Top 55%
PLPharm-Eco Laboratories: 1 patents #17 of 27Top 65%
BPBeecham Group Plc: 1 patents #207 of 180Top 115%
Merck: 1 patents #5,440 of 9,382Top 60%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Robert Stevenson has been granted 5 US patents while listed as an inventor at Astrazeneca Ab. The first was granted in 1980 and the most recent in May 2011. Robert Stevenson ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Robert Stevenson in Dorking, MA, GB.

Patents per Year

Patents granted per year, 1980 to 2011Bar chart with a peak of 1 patents in 1980.peak 11980: 1 patents19801986: 1 patents19861996: 1 patents19962000: 1 patents20002011: 1 patents2011

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
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 $6,831,000
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 $14,778,000
4198503 3-Carbamoyl substituted-7-ureido substituted cephalosporins Norman H. Rogers 1980-04-15