Patents by Inventor Richard F. Pape

Richard F. Pape 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 the recovery of polymers dissolved in aqueous alkaline or acid media
    Patent number: 5336755
    Abstract: The invention relates to a process for the recovery of polymers dissolved in an aqueous alkaline or acid medium by precipitating the polymers with acid or alkaline precipitants, the precipitation being initiated in a strong aqueous flow and the precipitated polymers separated from the aqueous medium.
    Type: Grant
    Filed: January 27, 1993
    Date of Patent: August 9, 1994
    Assignee: Belland AG
    Inventor: Richard F. Pape