Patents by Inventor Mark A. Abramowicz

Mark A. Abramowicz 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).

  • Flexible light pipe for side-lit applications
    Patent number: 6215947
    Abstract: An improved optical light pipe for side-lit uses is formed from a core/cladding combination, optionally with a transparent jacket, where the core is preferably a cured acrylic polymer and the cladding is preferably a fluorocarbon polymer containing a very low level of fine particles which scatter the light uniformly along the length of the piping. Further light enhancement can be obtained with low levels of glass fibers or glass microspheres also present in the cladding. Chopped glass fibers alone at low levels in the cladding are useful for back-lit applications. The light pipe so formed is useful in signs, underwater outlines, corridor lighting in theaters, and similar uses.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: April 10, 2001
    Assignee: Fiberstars Incorporated
    Inventors: Mark A. Abramowicz, Jeffrey L. Daecher, Michael P. Hallden-Abberton
  • Polyglutarimide/glass fiber combinations
    Patent number: 5344868
    Abstract: Glass-reinforced polyglutarimides exhibit improved impact resistance when low levels of phenoxy resin are incorporated into the blend.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: September 6, 1994
    Assignee: Rohm and Haas Company
    Inventors: Michael P. Hallden-Abberton, William J. Work, Mark A. Abramowicz, Phuong N. Duong