Patents by Inventor Keith A. Woodruff

Keith A. Woodruff 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).

  • Dispensing package for automatically releasing a controlled amount of an additive solution into a water tank and bowl
    Patent number: 4432102
    Abstract: A device for dispensing additives to the tank and bowl of a flushable toilet. More particularly, the invention relates to such a device having no moving parts, but which nevertheless dispenses a predetermined quantity of additive with each flush.
    Type: Grant
    Filed: October 21, 1981
    Date of Patent: February 21, 1984
    Assignee: American Cyanamid Co.
    Inventors: Keith Woodruff, Arturo A. Villamarin
  • Stick antiperspirant package and process
    Patent number: 4369158
    Abstract: Method for making a package for a wax-like cosmetic stick product having a twist-up in the bottom of the package, the twist-up comprising a base, spindle and elevator, vents in both said base and elevator, and a cap affixed to the package.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: January 18, 1983
    Assignee: American Cyanamid Company
    Inventors: Keith Woodruff, Donald Johnson, John H. Hill, Barbara A. Donovan
  • Process for the manufacture of a cosmetic or pharmaceutical stick
    Patent number: 4069574
    Abstract: A process for manufacturing a wax-like cosmetic stick product having an improved contour on its upper surface, by filling at the open bottom with the stick material in a molten state, the case having a cap which provides the contour, allowing the stick to solidify, and placing a push-up device in the bottom of the case.
    Type: Grant
    Filed: October 15, 1976
    Date of Patent: January 24, 1978
    Assignee: American Cyanamid Company
    Inventors: Helga Krevald, Donald Patrick Johnson, Keith Woodruff
  • Insect feeding station or similar article
    Patent number: D273032
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: March 13, 1984
    Assignee: American Cyanamid Company
    Inventor: Keith Woodruff