Talk:Franjo Kajfež

Franjo Kayfež is not an inventor of valium
Franjo Kayfež is not an inventor of apaurin or valium. Even Leo Henryk Sternbach in 1955 synthesized chlordiazepoxide (Librium), working for Hoffmann-La Roche. Earl Reeder and Leo Henryk Sternbach from the Hoffman La Roche factory patentpatent US3371085 A and before Leo Henryk Sternbach patented US2893992.Apaurin is the only factory name for diazepam or benzodiazepine. At the time of Yugoslavia - in the Federal Patent Office, the company F.Hoffmann-La Roche & Co., and Aktiengesellschaft from Basel, Switzerland, patented the Benzodiazepine derivative preparation process, where the right of priority was reserved on December 27, 1963, from the United States with application P 1844 / 1964 of December 23, 1964, and patent YU 26585 is valid from March 31, 1967 --Dmitar Zvonimir (talk) 13:19, 31 August 2017 (UTC)