Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Stephan Elzner — 6 Patents

LOLonza: 6 patents #61 of 658Top 10%
Brig, CH: #18 of 80 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Stephan Elzner has been granted 6 US patents while listed as an inventor at Lonza. The first was granted in 2013 and the most recent in September 2016. Stephan Elzner ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Stephan Elzner in Brig, CH.

Patents per Year

Patents granted per year, 2013 to 2016Bar chart with a peak of 4 patents in 2015.peak 42013: 1 patents20132015: 4 patents20152016: 1 patents2016

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
9434694 Method for preparation of medetomidine with chloroacetone Florencio Zaragoza Doerwald, Anna Kulesza, Robert Bujok, Zbigniew Wrobel, Krzysztof Wojciechowski 2016-09-06
9156793 Method for preparation of medetomidine with chloroacetone Florencio Zaragoza Doerwald, Anna Kulesza, Robert Bujok, Zbigniew Wrobel, Krzysztof Wojciechowski 2015-10-13
9126914 Method for preparation of 2-(2,3-dimethylphenyl)-1-propanal with chloroacetone Florencio Zaragoza Doerwald, Anna Kulesza, Robert Bujok, Zbigniew Wrobel, Krzysztof Wojciechowski 2015-09-08
9126915 Method for preparation of 2-(2,3-dimethylphenyl)-1-propanal Florencio Zaragoza Doerwald, Anna Kulesza, Robert Bujok, Zbigniew Wrobel, Krzysztof Wojciechowski 2015-09-08
9045433 Method for preparation of medetomidine Florencio Zaragoza Doerwald, Anna Kulesza, Robert Bujok, Zbigniew Wrobel, Krzysztof Wojciechowski 2015-06-02
8563752 Process for the production of carnitine by cycloaddition Paul Hanselmann, Ellen Klegraf, Wilhelm Quittmann, Daniel Fischer 2013-10-22