Patents by Inventor Petra PICHA

Petra PICHA 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 3-HYDROXY-3-METHYLBUTYRATE (HMB) AND SALTS THEREOF
    Publication number: 20220204435
    Abstract: The present invention pertains to a process for preparing 3-hydroxy-3-methylbutyrate (HMB) or a salt thereof, the method comprising (a) reacting isobutylene oxide with cyanide in order to obtain 3-hydroxy-3-methylbutyronitrile, and (b) hydrolyzing the 3-hydroxy-3-methylbutyronitrile obtained in step (a) in order to obtain HMB, wherein hydrolysis step (b) is performed using either at least one nitrilase enzyme or, alternatively, using a combination of enzymes, said combination comprising at least one nitrile hydratase and at least one amidase.
    Type: Application
    Filed: March 25, 2020
    Publication date: June 30, 2022
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Timo STAHL, Axel RONNEBURG, Imad MOUSSALLEM, Juliette HALLI, Petra PICHA