Patents by Inventor Hossein Ghassemi

Hossein Ghassemi 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).

  • Aminoimides
    Patent number: 5459227
    Abstract: Bis-N-aminoimides of formula (III): ##STR1## wherein m is 0 or 1 and is a mono- or polycyclic aromatic radical, can be employed to produce a variety of polymers of the type produced from diamines, including polyimides having an N--N linkage; polymers can be produced having exceptionally high glass transition temperatures, but which are also soluble in organic solvents; colored polymers and electroconductive polymers and photoconductive polymers can also be produced.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: October 17, 1995
    Inventors: Allan S. Hay, Hossein Ghassemi
  • Aminoimides
    Patent number: 5420234
    Abstract: Bis-N-aminoimides of formula (III): ##STR1## wherein m is 0 or 1 and ##STR2## is a mono- or polycyclic aromatic radical, can be employed to produce a variety of polymers of the type produced from diamines, including polyimides having an N--N linkage; polymers can be produced having exceptionally high glass transition temperatures, but which are also soluble in organic solvents; colored polymers and electroconductive polymers and photoconductive polymers can also be produced.
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: May 30, 1995
    Inventors: Allan S. Hay, Hossein Ghassemi
  • Bis-N-aminoimides
    Patent number: 5359092
    Abstract: Bis-N-aminoimides of formula (III): ##STR1## wherein m is 0 or 1 and is a mono- or polycyclic aromatic radical, can be employed to produce a variety of polymers of the type produced from diamines, including polyimides having an N--N linkage; polymers can be produced having exceptionally high glass transition temperatures, but which are also soluble in organic solvents; coloured polymers and electroconductive polymers and photoconductive polymers can also be produced.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: October 25, 1994
    Inventors: Allan S. Hay, Hossein Ghassemi