Patents by Inventor Franz Rembold

Franz Rembold 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).

  • Antibiotic derivatives
    Patent number: 4092424
    Abstract: Disclosed is a process for producing the antibiotic pleuromutilin by cultivating strains of Clitopilus passeckerianus (Pil.) Sing in an aqueous nutrient medium. The production of esters of pleuromutilin and hydrogenation products thereof are also described. The pleuromutilin and derivatives thereof are useful as an antibacterial ingredient in animal feed compositions.The disclosure also describes derivatives of pleuromutilin which are useful in veterinary medicine. These derivatives include esters obtained by reacting pleuromutilin or its hydrogenation products with reactive compounds such as acid halides, acid anhydrides, esters and the like, of isocyanic acid, aliphatic monocarboxylic acids or dicarboxylic acids containing at least 3 carbon atoms or sulfonic acids.
    Type: Grant
    Filed: September 11, 1975
    Date of Patent: May 30, 1978
    Assignee: Biochemie Ges.m.b.H.
    Inventors: Ernst Brandl, Franz Knauseder, Franz Rembold
  • Antibiotic derivatives
    Patent number: 3949079
    Abstract: A process for producing the antibiotic pleuromutilin by cultivating strains of Clitopilus passeckerianus (Pil.) Sing in an aqueous nutrient medium. The production of esters of pleuromutilin and hydrogenation products thereof are also described. The pleuromutilin and derivatives thereof are useful as an antibacterial ingredient in animal feed compositions.
    Type: Grant
    Filed: August 14, 1967
    Date of Patent: April 6, 1976
    Assignee: Biochemie Ges.m.b.H.
    Inventors: Ernst Brandl, Franz Knauseder, Franz Rembold