Patents by Inventor Thomas Philip Holding

Thomas Philip Holding 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).

  • DRUMS
    Publication number: 20090038465
    Abstract: A shell (1) for a drum comprises an outer layer (1a), an intermediate layer (1b) and inner layer (1c), wherein the intermediate layer has a plurality of larger apertures (2) and the inner layer has a plurality of smaller apertures (3) overlying the larger apertures.
    Type: Application
    Filed: April 21, 2006
    Publication date: February 12, 2009
    Inventors: John Whalley, Thomas Philip Holding