Patents by Inventor Daniel Sundah

Daniel Sundah 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).

  • Mixture of THP and chrome as tanning agents
    Patent number: 6685747
    Abstract: THP and chrome are synergistic tanning agents. The combination of THP with small amounts of chrome and optionally non-ionic and/or cationic surfactants gives increased area yield and shrink temperature compared with THP, and reduced environmental impact compared with chrome. It is possible to combine degreasing, pre-tan and main tan in a single step.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: February 3, 2004
    Assignee: Rhodia Consumer Specialties Limited
    Inventors: Robert Burrow, Daniel Sundah