Patents by Inventor Alan Daniel Stein

Alan Daniel Stein 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).

  • Process and apparatus for forming plastic sheet
    Patent number: 6472031
    Abstract: Disclosed is an apparatus for formation of high quality plastic sheet in a continuous fashion. Also disclosed are a variety of optical and electronic display applications for high quality plastic sheet produced in a continuous fashion.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: October 29, 2002
    Assignee: Rohm and Haas Company
    Inventors: Jeffrey Lawrence Daecher, Steven David Fields, Garo Khanarian, Alan Daniel Stein
  • Process and apparatus for forming plastic sheet
    Patent number: 6451403
    Abstract: Disclosed is an apparatus for formation of high quality plastic sheet in a continuous fashion. Also disclosed are a variety of optical and electronic display applications for high quality plastic sheet produced in a continuous fashion.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: September 17, 2002
    Assignee: Rohm and Haas Company
    Inventors: Jeffrey Lawrence Daecher, Steven David Fields, Garo Khanarian, Alan Daniel Stein
  • Plastic substrates for electronic display applications
    Patent number: 6322860
    Abstract: Disclosed is the use of certain polyglutarimides as plastic substrates for use in electronic display applications. These substrates have relatively high Tgs for plastics, and good optical clarity and flatness, with low shrinkage and low birefringence. Also disclosed are electronic display cells made using such polyglutarimide substrates.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: November 27, 2001
    Assignee: Rohm and Haas Company
    Inventors: Alan Daniel Stein, Michael Paul Hallden-Abberton, Audrey Brenda Liss, Steven David Fields
  • Process and apparatus for forming plastic sheet
    Patent number: 6280808
    Abstract: Disclosed is an apparatus for formation of high quality plastic sheet in a continuous fashion. Also disclosed are a variety of optical and electronic display applications for high quality plastic sheet produced in a continuous fashion.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: August 28, 2001
    Assignee: Rohm and Haas Company
    Inventors: Steven David Fields, Garo Khanarian, Jeffrey Lawrence Daecher, Alan Daniel Stein
  • Process and apparatus for forming plastic sheet
    Patent number: 6183829
    Abstract: Disclosed is an apparatus for formation of high quality plastic sheet in a continuous fashion. Also disclosed are a variety of optical and electronic display applications for high quality plastic sheet produced in a continuous fashion.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: February 6, 2001
    Assignee: Rohm and Haas Company
    Inventors: Jeffrey Lawrence Daecher, Steven David Fields, Garo Khanarian, Alan Daniel Stein