Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
GE

Gunter Engel — 8 Patents

SASandoz Ag: 5 patents #90 of 1,103Top 9%
Weil, DE: #3 of 20 inventorsTop 15%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Gunter Engel has been granted 8 US patents while listed as an inventor at Sandoz Ag. The first was granted in 1980 and the most recent in May 1991. Gunter Engel ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Gunter Engel in Weil, DE.

Patents per Year

Patents granted per year, 1980 to 1991Bar chart with a peak of 3 patents in 1989.peak 31980: 1 patents19801988: 1 patents19881989: 3 patents19891990: 1 patents19901991: 2 patents1991

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
5017582 Method of inducing a serotonin M receptor antagonist effect with N-quinuclidinyl-benzamides Peter Donatsch, Bruno Hugi, Brian P. Richardson, Paul Stadler, Gerald Breuleux, legal representative 1991-05-21
5001133 Benzoic acid derivatives Brian P. Richardson, Rudolf K. A. Giger, Andrea Vasella 1991-03-19
4910207 Method of treating psychosis with N-quinuclidinyl-benzamides Peter Donatsch, Bruno Hugi, Brian P. Richardson, Paul Stadler, by Hildegard R. Stadler, heir +3 more 1990-03-20
4826838 Analgesic carbocyclic and heterocyclic carbonylmethylene-and carbonylmethypipidines and-pyrrolidines Brian P. Richardson, Rudolf K. A. Giger, Roland Furler 1989-05-02
4803199 Pharmaceutically useful heterocyclic and carbocyclic acid esters and amides of alkylene bridged piperidines Peter Donatsch, Bruno Hugi, Brian P. Richardson, Paul Stadler, by Hildegard R. Stadler, heir +3 more 1989-02-07
4797406 Amides and esters containing bridged piperidines and use as serotonin M antagonists Brian P. Richardson, Rudolf K. A. Giger, Andrea Vasella 1989-01-10
4789673 Heterocyclic carboxylic acid amides and esters Peter Donatsch, Bruno Hugi, Brian P. Richardson, Hildegard R. Stadler, Brigitte Maria STÄDLER +2 more 1988-12-06
4189494 Reducing free fatty acid of the blood and suppressing appetite Heribert Wagner 1980-02-19