Patents by Inventor T. Edward Petroff

T. Edward Petroff 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).

  • Method for producing thick ceramic films by a sol gel coating process
    Patent number: 5585136
    Abstract: A method for producing thick ceramic films of greater than 10 .mu.m on selected substrates is described. Conventional sol gel solutions are loaded with up to about 90% by weight of finely divided ceramic particles and mixed. The resulting slurry or paint can be either spun or dip coated or sprayed or painted onto a planar or other substrate, fired to remove the organic materials and to develop a microcrystalline structure. The fired film may then be heated. Composite films are also contemplated.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: December 17, 1996
    Assignee: Queen's University at Kingston
    Inventors: David A. Barrow, T. Edward Petroff, Michael Sayer
  • Ink jet printing process
    Patent number: 5345254
    Abstract: An ink jet printing process includes jetting an ink composition onto a substrate. The ink composition is an emulsion or suspension of an organic phase in a water phase, the organic phase including at least one of oil and wax.
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: September 6, 1994
    Assignee: Xerox Corporation
    Inventors: Raymond W. Wong, Marcel P. Breton, Melvin D. Croucher, James M. Duff, T. Edward Petroff, William Riske, Kerstin M. Henseleit
  • Method of preparing photoconductive pigments by treating .alpha.-form metal-free phthalocyanine to a liquid jet interaction
    Patent number: 5168022
    Abstract: In a process for preparing a photoconductive pigment having a small particle size, a polymorph of a pigment is produced by a conversion process wherein a seed amount of the desired polymorph of the pigment and a larger amount of another polymorph of the pigment are subjected to a liquid jet interaction process.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: December 1, 1992
    Assignee: Xerox Corporation
    Inventors: Eric B. Wasmund, T. Edward Petroff
  • Method for producing thick ceramic films by a sol gel coating process
    Patent number: RE36573
    Abstract: A method for producing thick ceramic films of greater than 10 .mu.m on selected substrates is described. Conventional sol gel solutions are loaded with up to about 90% by weight of finely divided ceramic particles and mixed. The resulting slurry or paint can be either spun or dip coated or sprayed or painted onto a planar or other substrate, fired to remove the organic materials and to develop a microcrystalline structure. The fired film may then be heated. Composite films are also contemplated.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: February 15, 2000
    Assignee: Queen's University at Kingston
    Inventors: David A. Barrow, T. Edward Petroff, Michael Sayer