Patents by Inventor Odd Friis

Odd Friis 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).

  • Patent number: 4019508
    Abstract: Wearable, self-contained and fully mobile personal breathing apparatus adapted to be worn by a surgeon or other operating room personnel is provided. The apparatus controls contamination of operating room spaces generated by the air normally expired by the wearer during surgery. The apparatus comprises a vest, a high efficiency particulate air filter secured to said vest, and conduit means for capturing and directing contaminated exhaled air from the wearer through the upstream side of said filter and a blower connected to the downstream side of said filter for inducing air flow in the conduit means and through the filter for decontamination and return to the operating room space.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: April 26, 1977
    Assignee: Research Development Systems, Inc.
    Inventors: Estephan Der Estephanian, Robert E. Foreman, Robert D. Scott, Odd Friis