Patents by Inventor Frank Corrigan

Frank Corrigan 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).

  • Polycrystalline cubic boron nitride abrasive particles and abrasive tools made therefrom
    Patent number: 5466269
    Abstract: The present invention provides cubic boron nitride abrasives with individual grains of a larger grain size and higher aspect ratios when compared to conventional polycrystalline CBN. These CBN abrasives are obtained from large particle ideal structure hexagonal boron nitride particles of a size 10-1000 .mu.m. These CBN abrasives can be used as particulates or as a compact mass and give improved wear performance over abrasive tools made with conventional CBN abrasives at reduced specific grinding energies.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: November 14, 1995
    Assignee: General Electric Company
    Inventors: Frank Corrigan, Sam Anthony, Barbara Sweeting
  • EFA compositions and therapy
    Patent number: 5116624
    Abstract: A pharmaceutical composition of GLA or DGLA and bioavailable selenium, optionally also with an 18:4 or higher n-3 EFA and/or bioavailable zinc.
    Type: Grant
    Filed: January 9, 1991
    Date of Patent: May 26, 1992
    Assignee: Efamol Holdings PLC
    Inventors: David F. Horrobin, Frank Corrigan