Patents by Inventor William K. Mainquist

William K. Mainquist 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).

  • Toilet bowl cleaning tablet
    Patent number: 6124251
    Abstract: A cleaning formulation, in tablet form, capable of providing a metered release of cleaning active while immersed in the tank of a toilet. The tablet comprises greater than about 85 to 99 weight percent of a halohydantoin plus about 1 to 15 weight percent of a longevity aid comprising boric acid.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: September 26, 2000
    Assignee: The Clorox Company
    Inventors: James E. Rader, William K. Mainquist
  • Process for in-mold labelling
    Patent number: 5968443
    Abstract: The invention provides a process, and an article of manufacture, in which a blown, hollow plastic article which has a paper label applied by in-mold labelling, must have the label positioned such that the longitudinal fibers thereof are oriented substantially with respect to the longest axis of the blown, hollow plastic article.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: October 19, 1999
    Assignee: The Clorox Company
    Inventors: Jorge Robles, William K. Mainquist