Patents by Inventor John Shirreffs

John Shirreffs 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).

  • Method and apparatus for filtering air entering an animal's nostrils
    Patent number: 7260923
    Abstract: A method and apparatus for filter air entering an animal's nostrils include a filtering element operatively disposed with a lower portion contacting the animal's nose region between the animal's nostrils and upper lip. A nose mask may be secured against the animal's nose region with adhesive or one or more stretchable bands extending around a portion of the head of the animal.
    Type: Grant
    Filed: August 3, 2004
    Date of Patent: August 28, 2007
    Inventors: Ann Moss, John Shirreffs
  • Method and apparatus for filtering air entering an animal's nostrils
    Publication number: 20060032196
    Abstract: A method and apparatus for filter air entering an animal's nostrils include a filtering element operatively disposed with a lower portion contacting the animal's nose region between the animal's nostrils and upper lip. A nose mask may be secured against the animal's nose region with adhesive or one or more stretchable bands extending around a portion of the head of the animal.
    Type: Application
    Filed: August 3, 2004
    Publication date: February 16, 2006
    Inventors: Ann Moss, John Shirreffs