Patents by Inventor Oskar Heiber

Oskar Heiber 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).

  • Crystal modifications of (+)-catechin and pharmaceutical preparations containing them
    Patent number: 4515804
    Abstract: Novel crystal modifications of (+)-catechin monohydrate and of (+)-catechin anhydrate more suitable for pharmaceutical preparations for reasons of higher stability against moisture and/or light and distinguished from hitherto known modifications by unique X-ray diffraction spectra are produced by specific recrystallization and/or crystal rearrangement processes and pharmaceutical preparations comprising the novel crystal forms.
    Type: Grant
    Filed: February 17, 1983
    Date of Patent: May 7, 1985
    Assignee: Zyma SA
    Inventors: Erwin Marti, Oskar Heiber, Alexandre Gumma, Gustave Huber, Isamu Utsumi, Hiroshi Nakagawa, Tatsuhiko Miyata, Koichi Akimoto