Patents by Inventor Johannes A. C. Van Ooyen

Johannes A. C. Van Ooyen 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).

  • Ruminant animal feedstuffs
    Patent number: 4959223
    Abstract: This invention relates to a supplement to ruminant animal feedstuffs to improve the milk production and milk protein yield of ruminants e.g. cows. The supplement comprises a basic salt of propionic acid having a pH of 8-14.
    Type: Grant
    Filed: April 20, 1989
    Date of Patent: September 25, 1990
    Assignee: BP Chemicals Limited
    Inventor: Johannes A. C. Van Ooyen