Patents by Inventor Roy Kittmer

Roy Kittmer 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).

  • Production of tanned leather and products suitable therefore
    Patent number: 6991659
    Abstract: The invention provides a process for the production of tanned and optionally retanned leather by treatment of an optionally (pre)tanned animal hide or pelt with an aldehyde-based treatment agent (A), wherein the optionally (pre)tanned animal hide or pelt is treated with (A) an aldehyde-based treatment agent which may e.g.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: January 31, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Roy Kittmer, Song Ma, Matthew Walker
  • Production of tanned leather and products suitable therefore
    Publication number: 20040074009
    Abstract: The invention provides a process for the production of tanned and optionally retanned leather by treatment of an optionally (pre)tanned animal hide or pelt with an aldehyde-based treatment agent (A), wherein the optionally (pre)tanned animal hide or pelt is treated with
    Type: Application
    Filed: July 24, 2003
    Publication date: April 22, 2004
    Inventors: Roy Kittmer, Song Ma, Mathew Walker