Patents by Inventor Mark Rademacher

Mark Rademacher 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: 5140710
    Abstract: An eye shield having two layers of X-radiation protective material is disclosed. X-radiation initially encounters a metalized thin layer that permits the substantial transmission of accompanying visible light yet partially diffracts, reflects, and refracts the X-radiation to decrease the amount of X-radiation passing through this metalized layer. Beneath the metalized thin layer is a lead layer that allows the passage of limited amounts of visible light yet functions to absorb effectively X-radiation. In combination, these two layers protect the eyes of a wearer from harmful X-radiation while permitting the wearer limited forward vision.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: August 25, 1992
    Inventor: Mark Rademacher
  • Patent number: 5016292
    Abstract: Safety goggles that effectively filter possibly dangerous levels of all types of cataractogenic radiation including near blue light, UV-A, B, and C, Gamma, and X-radiation are disclosed comprising an UV, Gamma, and X-ray radiopaque frameless leaded polymer lens formed to curve over a user's face having a radiolucent polymer nose rest and ear pieces and a radiopaque boot extending from the lens to proximate the user's face to produce a vented peripheral enclosure to cover both eyes of the user and shield the user's eyes from all angles of harmful radiation exposure, but allow unobstructed forward and peripheral vision.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: May 21, 1991
    Inventor: Mark Rademacher