Patents by Inventor Philip R. Rosenthal

Philip R. Rosenthal 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).

  • Photographer's diffuser light
    Patent number: 4504888
    Abstract: A light is described having a hollow body with a support means pivotally connected to the body for aiming the light, a transmission plate detachably held in its mount at the front of the body, a light source detachably mounted on a mounting plate which is in turn detachably mounted on the back end of the light, and a vent means for venting hot air from the interior of the light.
    Type: Grant
    Filed: January 25, 1984
    Date of Patent: March 12, 1985
    Assignee: Pennywise Enterprises, Inc.
    Inventor: Philip R. Rosenthal