Patents by Inventor Carl H. Gregor

Carl H. Gregor 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 treatment of clarification sludge
    Patent number: 4966706
    Abstract: The present invention is in a process for the treatment of clarification sludge, wherein a sludge is treated with a per acid containing up to 3 carbon atoms and subsequently allowed to digest in a septic plant.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: October 30, 1990
    Assignee: Peroxid-Chemie GmbH
    Inventor: Carl H. Gregor