Patents by Inventor Donald George LeGrand

Donald George LeGrand 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).

  • Multilayer plastic articles
    Patent number: 6465101
    Abstract: Multilayer plastic composite articles comprise at least one poly (alkylene naphthalate) surface layer which is adherent to at least one surface of a substrate which is formed of a thermoplastic resin. Decorative layers can be located between the substrate and the poly (alkylene naphthalate) surface layers.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: October 15, 2002
    Assignee: General Electric Company
    Inventors: Amy Kathleen MacGregor, Donald George LeGrand, Sterling Bruce Brown, Kenneth Lee Lilly
  • Static-resistant polycarbonates having DI-t-alkylphenyl end groups
    Patent number: 6140457
    Abstract: Polycarbonates, such as bisphenol A polycarbonates, having end groups derived from a di-t-alkylphenol such as 3,5-di-t-butylphenol have very low electrostatic charges. They are thus useful in applications where static charge is a problem, such as automotive headlamps and optical data recording media.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: October 31, 2000
    Assignee: General Electric Company
    Inventors: Donald George LeGrand, Patrick Joseph McCloskey
  • Optical quality copolycarbonates containing polyoxyalkylene carbonate units
    Patent number: 6042920
    Abstract: Copolycarbonates comprise structural units derived from a bisphenol such as bisphenol A, a spiro(bis)indane bisphenol such as 6,6'-dihdyroxy-3,3,3',3'-tetramethyl-1,1'-spiro(bis)indane and a polyoxyalkylene glycol such as polyethylene glycol. These copolycarbonates have high processability and are expected to have low birefringence. They are useful for the fabrication of optical disks.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: March 28, 2000
    Assignee: General Electric Company
    Inventors: Gautam Chatterjee, Joseph Anthony King, Jr., Donald George LeGrand, Godavarthi Satyanarayana Varadarajan