Patents by Inventor Max Hoffer

Max Hoffer 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).

  • Process for preparing 2,2'-anhydro-1.beta.-D-arabi nofuranosyl-5-fluorocytosine and salts
    Patent number: 4124757
    Abstract: 2,2'-Anhydro-1.beta.-D-arabinofuranosyl-5-fluorocytosine (hereafter AAFC) and its acid addition salts are known compounds. AAFC may now be conveniently prepared in extremely high yield by selective acid catalyzed hydrolysis of the corresponding 3'-O-acyl analogs of AAFC which unexpectedly hydrolyzes at the acyl group while the 2,2'-anhydro linkage remains intact.
    Type: Grant
    Filed: January 11, 1973
    Date of Patent: November 7, 1978
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Max Hoffer
  • Antibacterial compositions
    Patent number: 3993761
    Abstract: 2,4-Diamino-5-(3-alkoxy-4,5-methylenedioxybenzyl)-pyrimidines, such as, for example, 2,4-diamino-5-(3-methoxy-4,5-methylenedioxybenzyl)pyrimidine, prepared from the corresponding benzaldehydes, are described. The end products are useful as potentiators of the antibacterial activity of sulfonamides, as well as antibiotics.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: November 23, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Emanuel Grunberg, Max Hoffer
  • Combination of oxytetracycline and 2,4-diamino-5-(3-alkoxy-4,5-methylenedioxybenzyl)pyrimidine
    Patent number: 3962435
    Abstract: 2,4-Diamino-5-(3-alkoxy-4,5-methylenedioxybenzyl)pyrimidines, such as, for example, 2,4-diamino-5-(3-methoxy-4,5-methylenedioxybenzyl)pyrimidine, prepared from the corresponding benzaldehydes, are described. The end products are useful as potentiators of the antibacterial activity of sulfonamides, as well as antibiotics.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: June 8, 1976
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Emanuel Grunberg, Max Hoffer