Patents Assigned to Princeton Organics, Inc.
  • Foamed lightweight ceramic compositions
    Patent number: 3944425
    Abstract: This invention provides cellular clay compositions which are dimensionally stable at 1000.degree.F. and higher, and which have a controlled pore structure that enhances the strength, durability and insulating properties of the compositions.
    Type: Grant
    Filed: January 31, 1974
    Date of Patent: March 16, 1976
    Assignee: Princeton Organics, Inc.
    Inventor: Jules Magder