Patents by Inventor Stephen Cummins

Stephen Cummins 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).

  • Publication number: 20060042208
    Abstract: A high-efficiency filter for removing or collecting trace levels of chemical compounds includes a randomly oriented glass substrate, a primer coating and a carbon coating. The present filter is operable to sample or remove chemical compounds from the air with a high volumetric capacity while maintaining a low pressure drop across the filter substrate. A method for making the present filter includes providing a glass substrate with randomly oriented glass fibers which is treated to remove any glue or other substances; the substrate is then coated with a primer including polydimethylsiloxane; and the primed substrate is then coated with a carbonaceous compound including polydimethylsiloxane.
    Type: Application
    Filed: August 24, 2004
    Publication date: March 2, 2006
    Inventors: Stephen Cummins, Gil Radolovich, Gary Cooper
  • Patent number: D853571
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: July 9, 2019
    Inventor: Stephen Cummins