GK

George Helmut Klemm

SP Specgx: 3 patents #9 of 33Top 30%
Pfizer: 2 patents #2,078 of 5,153Top 45%
MA Mallinckrodt: 1 patents #260 of 489Top 55%
PH Pharmacia: 1 patents #257 of 528Top 50%
Overall (All Time): #686,016 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12371423 Preparation of sufentanil citrate and sufentanil base Brian Orr, Joel McClenaghan 2025-07-29
10899749 Preparation of sufentanil citrate and sufentanil base Brian Orr, Joel McClenaghan 2021-01-26
10227335 Preparation of sufentanil citrate and sufentanil base Brian Orr, Joel McClenaghan 2019-03-12
8946433 Process for the preparation of sufentanil base and related compounds Brian Orr, Joseph P. Haar, Jr., Keith G. Tomazi 2015-02-03
7906536 Processes for the preparation of 3-(4-(2,4-difluorobenzyloxy)-3-bromo-6-methyl-2-oxopyridin-1(2H)-yl)-N,4-dimethylbenzamide Daniel Dukesherer, Michael K. Mao, Richard Vonder Embse, Gopi Yalamanchili, Rajappa Vaidyanathan +3 more 2011-03-15
7759497 Synthesis of diaryl pyrazoles Leo J. Letendre, William D. McGhee, Cynthia Snoddy, Henry Gaud 2010-07-20
7141678 Synthesis of diaryl pyrazoles Leo J. Letendre, William D. McGhee, Cynthia Snoddy, Henry Gaud 2006-11-28