Patents by Inventor Theodericus J. Straathof

Theodericus J. Straathof 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).

  • Biodegradable fabric softeners
    Patent number: 4767547
    Abstract: Fabric softening compositions which are rapidly biodegradable and particularly shelf stable are disclosed. These compositions contain a specific quaternary ammonium, and are formulated in a narrowly defined pH range.
    Type: Grant
    Filed: March 26, 1987
    Date of Patent: August 30, 1988
    Assignee: The Procter & Gamble Company
    Inventors: Theodericus J. Straathof, Axel Konig
  • Fabric softener composition
    Patent number: 4661267
    Abstract: Rinse-added fabric softening compositions containing a fabric softening active system at least 10% of which consists of certain di(higher alkyl) cyclic amines, and relatively low concentrations of polymeric soil release agents such as hydroxyether cellulosic polymers, copolymeric blocks of terephthalate and ethylene oxide or propylene oxide and cationic guar gums.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: April 28, 1987
    Assignee: The Procter & Gamble Company
    Inventors: Bob Dekker, Axel Konig, Theodericus J. Straathof, Eugene P. Gosselink