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Rolf Hoffmann — 4 Patents

DADegussa Ag: 1 patents #925 of 2,007Top 50%
DADegussa-Huels Ag: 1 patents #156 of 473Top 35%
EGEvonik Degussa Gmbh: 1 patents #940 of 1,853Top 55%
SCSchering: 1 patents #1,469 of 2,442Top 65%
Berlin, DE: #1,838 of 9,690 inventorsTop 20%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Rolf Hoffmann has been granted 4 US patents while listed as an inventor at Degussa Ag. The first was granted in 1984 and the most recent in December 2013. Rolf Hoffmann ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Rolf Hoffmann in Berlin, DE.

Patents per Year

Patents granted per year, 1984 to 2013Bar chart with a peak of 1 patents in 1984.peak 11984: 1 patents19842000: 1 patents20002010: 1 patents20102013: 1 patents2013

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8618310 Process for preparing n-protected 4-ketoproline derivatives Kai Rossen, Martin Sarich 2013-12-31
7728167 Process for the preparation of enantiomerically enriched amino acids Michael Kraft 2010-06-01
6037474 Process for the preparation of cyclic 4-oxoamidines Karlheinz Drauz, Ivan Pilgrims 2000-03-14
4466442 Carrier liquid solutions for the production of gas microbubbles, preparation thereof, and use thereof as contrast medium for ultrasonic diagnostics Juergen Hilmann, Wolfgang Muetzel, Ingfried Zimmermann 1984-08-21

Frequent Collaborators

Ingfried Zimmermann1 shared
Karlheinz Drauz1 shared
Wolfgang Muetzel1 shared
Martin Sarich1 shared
Kai Rossen1 shared
Juergen Hilmann1 shared

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