Patents by Inventor Philip F. White

Philip F. White 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).

  • Biological control of dipteran pests of the genus Lycoriella using Bacillus thuringiensis
    Patent number: 5512279
    Abstract: The invention relates to the biological control of Dipteran pests other than the mosquito, which comprises the use of Bacillus thuringiensis isolate HD 541 (NCIMB 40373) or HD 571 (NCIMB 40374), or a mutant, recombinant or derivative thereof, or insecticidal material derived therefrom.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: April 30, 1996
    Assignee: Agricultural Genetics Company Limited
    Inventors: Paul Jarrett, Philip F. White, Nicole J. Pethybridge
  • Gear generating machine
    Patent number: 4318648
    Abstract: In a machine of the type in which cutting tools are arranged on successive links of an endless chain, each tool being in offset rotation to the preceding tool, at right angles to the direction of travel, means are provided for periodically shifting the workhead and work spindle parallel with the plane in which the tools travel when cutting. The means for shifting are operatively independent of the means for driving the chain and the work spindle in generation, and are operated when the tools and workpieces are disengaged, and normally after a predetermined number of stacks of workpieces has been cut, in order to equalize wear on the blades carried by the chain.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: March 9, 1982
    Assignee: The Gleason Works
    Inventors: Thomas A. Deprez, Philip F. White