Patents by Inventor Eskendar Ali Khan

Eskendar Ali Khan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 7-(Oxoalkyl)-1,3-di-n-iso-propyl xanthines and their production
    Patent number: 4291037
    Abstract: 7-(Oxoalkyl)-1,3-dialkyl xanthines whose substituents in the 1- and 3-positions are alkyl groups of 2 to 6 carbons, cyclohexyl, alkoxyalkyl or hydroxyalkyl, such as 7-(3-oxobutyl)-1,3-di-n-butylxanthine, are effective vasodilators, having a marked activity in promoting blood flow through skeletal muscle, while at the same time exhibiting low toxicity.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: September 22, 1981
    Assignee: Johann A. Wulfing
    Inventors: Gunther Brenner, Joachim Goring, Eskendar Ali Khan, Oskar Rohte, Manfred Tauscher
  • 7-(Oxoalkyl)-1,3-dialkyl xanthines, and medicaments containing them
    Patent number: 4242345
    Abstract: 7-(Oxoalkyl)-1,3-dialkyl xanthines whose substituents in the 1- and 3-positions are alkyl groups of 2 to 6 carbons, cyclohexyl, alkoxyalkyl or hydroxyalkyl, such as 7-(3-oxobutyl)-1,3-di-n-butylxanthine, are effective vasodilators, having a marked activity in promoting blood flow through skeletal muscle, while at the same time exhibiting low toxicity.
    Type: Grant
    Filed: September 19, 1978
    Date of Patent: December 30, 1980
    Assignee: Johann A. Wulfing
    Inventors: Gunther Brenner, Joachim Goring, Eskendar Ali Khan, Oskar Rohte, Manfred Tauscher