Patents by Inventor Christopher Alan Barnett

Christopher Alan Barnett 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).

  • Textured retroreflective prism structures and molds for forming same
    Patent number: 6770225
    Abstract: Retroreflective prism sheeting is formed in a mold with textured facets and/or windows thereon. Smaller prisms are formed adjacent larger prisms. Optionally, the optical axis of the prisms may be tilted with respect to one another, preferably in a negative direction. The textured facets or windows provide more uniform retroreflected light intensity distribution and whiteness of the sheeting.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: August 3, 2004
    Assignee: Reflexite Corporation
    Inventors: Robert B. Nilsen, Christopher Alan Barnett, Nicholas John Phillips
  • Textured retroreflective prism structures and molds for forming same
    Publication number: 20010048169
    Abstract: Retroreflective prism sheeting is formed in a mold with textured facets and/or windows thereon. Smaller prisms are formed adjacent larger prisms. Optionally, the optical axis of the prisms may be tilted with respect to one another, preferably in a negative direction. The textured facets or windows provide more uniform retroreflected light intensity distribution and whiteness of the sheeting.
    Type: Application
    Filed: July 9, 2001
    Publication date: December 6, 2001
    Applicant: Reflexite Corporation
    Inventors: Robert B. Nilsen, Christopher Alan Barnett, Nicholas John Phillips
  • Textured retroreflective prism structures and molds for forming same
    Patent number: 6258443
    Abstract: Retroreflective prism sheeting is formed in a mold with textured facets and/or windows thereon. Smaller prisms are formed adjacent larger prisms. Optionally, the optical axis of the prisms may be tilted with respect to one another, preferably in a negative direction. The textured facets or windows provide more uniform retroreflected light intensity distribution and whiteness of the sheeting.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: July 10, 2001
    Assignee: Reflexite Corporation
    Inventors: Robert B. Nilsen, Christopher Alan Barnett, Nicholas John Phillips
  • Seamless holographic transfer using laser generated optical effect patterns
    Patent number: 6222157
    Abstract: Apparatus for continuously micro-embossing a seamless precision optical pattern onto a moving substrate without the use of an intermediate layer, comprising an energy source, such as a laser, along with reduction optics, a mask and a moving substrate. The moving substrate provides both precision linear and rotational movement which motion is coupled with the laser projection imaging episode. Etched patterns can therefor be continuously and precisely ablated in the substrate to substantially cover the entire surface to uniquely micro-emboss therein a seamless precision optical image.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: April 24, 2001
    Assignee: L.A. Batchelder and Sons Consulting, Inc.
    Inventors: William A. Langille, Lee A. Batchelder, Eitan Chaim Zeira, Christopher Alan Barnett, Joseph S. Formosa