Patents by Inventor Ernst P. Krebs

Ernst P. Krebs 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).

  • Polyene compounds
    Patent number: 4539154
    Abstract: 9-(cyclohexenyl or phenyl)-4,7-dimethyl-2,4,6,8-nonatetraenoic acid derivatives as well as 7-(5,6,7,8-tetrahydro-5,5,8,8,-tetramethyl-2-naphthyl)-4-methyl-2,4,6-octa trienoic acid derivatives useful for the treatment of neoplasms, premalignant lesions, acne, psoriasis and rheumatic diseases of an inflammatory or degenerative kind.
    Type: Grant
    Filed: June 15, 1983
    Date of Patent: September 3, 1985
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Ernst P. Krebs