Patents by Inventor David Andrew Greenhill

David Andrew Greenhill 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).

  • Printable compositions useful in electronic applications and methods relating thereto
    Patent number: 9862846
    Abstract: A printable ink for electronic applications is disclosed. The ink contains at least one non-interactive solvent, a binder, optionally one or more particulate fillers that may be conductive, semi-conductive or non-conductive, optionally a co-solvent and optionally other additives.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: January 9, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: David Andrew Greenhill, Vincenzo Arancio, Jay Robert Dorfman
  • PRINTABLE COMPOSITIONS USEFUL IN ELECTRONIC APPLICATIONS AND METHODS RELATING THERETO
    Publication number: 20150337148
    Abstract: A printable ink for electronic applications is disclosed. The ink contains at least one non-interactive solvent, a binder, optionally one or more particulate fillers that may be conductive, semi-conductive or non-conductive, optionally a co-solvent and optionally other additives.
    Type: Application
    Filed: May 22, 2015
    Publication date: November 26, 2015
    Inventors: DAVID ANDREW GREENHILL, Vincenzo Arancio, Jay Robert Dorfman
  • THERMALLY CONDUCTIVE ELECTRONIC SUBSTRATES AND METHODS RELATING THERETO
    Publication number: 20150228374
    Abstract: The present invention relates to polyimide pastes and methods of preparation. The polyimide pastes are used to prepare dielectric materials, and devices which include at least one layer which contain the polyimide pastes.
    Type: Application
    Filed: February 5, 2015
    Publication date: August 13, 2015
    Inventors: KERRY JOHN ADAMS, DAVID ANDREW GREENHILL, ALISTAIR GRAEME PRINCE, JOHN D. SUMMERS
  • Method of treating an aqueous suspension of kaolin
    Patent number: 6615987
    Abstract: A method of treating a kaolin particulate material to improve its properties by removal of impurities which includes the steps of: (a) producing a dispersed aqueous suspension of a kaolin particulate material containing at least 0.1% by weight, based on the dry weight of the kaolin particulate material, of separable impurity by adding a dispersing agent to the kaolin particulate material to deflocculate solid particles of the material in the suspension; (b) conditioning the suspension prior to adding selective flocculation polymer thereto by allowing the suspension to age for a period of at least 30 minutes and optionally by adding one or more conditioning chemicals thereto; (c) adjusting the pH of the suspension to be at least about 9.5; (d) adding to the suspension at a pH of at least about 9.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: September 9, 2003
    Assignee: Imerys Pigments, Inc.
    Inventors: David Andrew Greenhill, Anthony Allan May, Christopher R. L. Golley, Ronald Windell Andrews