Patents by Inventor Doug Zalla

Doug Zalla 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).

  • Bottle
    Patent number: D439519
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: March 27, 2001
    Assignee: Ashland Inc.
    Inventors: Steven B. Ruble, Doug Zalla, Michael C. Stephan, Sheldon Yourist
  • Bottle
    Patent number: D415689
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: October 26, 1999
    Assignee: Ashland Inc.
    Inventors: John K. Voight, Sam Mitchell, Steven A. Kirchner, Doug Zalla, Larry A. Schrock, Ares Marasligiller, Richard S. Barrack, Howard McIlvain, Claudia S. Gladstone
  • Bottle
    Patent number: D416803
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: November 23, 1999
    Assignee: Ashland Inc.
    Inventors: John K. Voight, Sam Mitchell, Steven A. Kirchner, Doug Zalla, Larry A. Schrock, Ares Marasligiller, Richard S. Barrack, Howard McIlvain, Claudia S. Gladstone