Patents by Inventor Steven Walter

Steven Walter 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).

  • Organotin stabilizer mixture
    Patent number: 5354508
    Abstract: An organotin stabilizer mixture comprising: (a) monoalkyltin mercaptoalcohol (b) a monoalkyltin mercaptoacid ester; and (c) a monoalkyltin sulfide provides improved early color, lubricity, and weatherability to rigid vinyl polymer formulations. The formulation may also contain a monoalkyltin mercaptoalcohol ester as an optional component.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: October 11, 1994
    Assignee: Akzo Nobel N.V.
    Inventors: Donald F. Anderson, Steven Walter
  • Stabilized vinyl halide resins and stabilizer combination
    Patent number: 5032634
    Abstract: Vinyl halide resins can be stabilized by a stabilizer mixture of a monomeric tetrafunctional organotin stabilizer and a hindered tris phenol antioxidant, preferably 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: July 16, 1991
    Assignee: Akzo America Inc.
    Inventor: Steven Walter
  • Tool accessory box
    Patent number: D826136
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: August 21, 2018
    Inventor: Steven Walter