Patents by Inventor George E. Alderfer

George E. Alderfer 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).

  • PRINTING SHEET
    Publication number: 20010016248
    Abstract: Printing sheets comprising microporous material or compressed microporous material having an ink-receptive layer joined to at least one side of the microporous material or compressed microporous material are particularly suited for ink jet printing. Preferably the ink receptive layer comprises hydrated aluminum oxide, and binder comprising water-soluble hydroxypropyl cellulose and water-soluble poly(vinyl alcohol).
    Type: Application
    Filed: September 11, 1997
    Publication date: August 23, 2001
    Inventors: GEORGE E. ALDERFER, CHARLES T. HILL, WILLIAM A. KEIM, RICHARD A. SCHWARZ, BULENT E. YOLDAS
  • Coating composition for recording paper
    Patent number: 5804293
    Abstract: Printed matter of high optical density may be obtained by ink-jet printing techniques when the coating contains composite particulate amorphous precipitated silica having a calculated multimodal particle size distribution wherein the particle sizes at the modes are less than 10 micrometers.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: September 8, 1998
    Assignee: PPG Industries, Inc.
    Inventors: Louis J. Nehmsmann, George E. Alderfer, Charles T. Hill
  • Ink jet printable coatings
    Patent number: 4732786
    Abstract: A coated ink jet printing substrate where said coating utilizes an insolubilized hydrophilic polymer.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: March 22, 1988
    Assignee: James River Corporation
    Inventors: Robert Patterson, David H. Hollenberg, Robert C. Desjarlais, George E. Alderfer