Patents by Inventor Derek J. McGee

Derek J. McGee 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).

  • Publication number: 20240069742
    Abstract: One aspect of the application can provide a system and method for replacing a failing node with a spare node in a non-uniform memory access (NUMA) system. During operation, in response to determining that a node-migration condition is met, the system can initialize a node controller of the spare node such that accesses to a memory local to the spare node are to be processed by the node controller, quiesce the failing node and the spare node to allow state information of processors on the failing node to be migrated to processors on the spare node, and subsequent to unquiescing the failing node and the spare node, migrate data from the failing node to the spare node while maintaining cache coherence in the NUMA system and while the NUMA system remains in operation, thereby facilitating continuous execution of processes previously executed on the failing node.
    Type: Application
    Filed: August 29, 2022
    Publication date: February 29, 2024
    Inventors: Thomas Edward McGee, Brian J. Johnson, Frank R. Dropps, Derek S. Schumacher, Stuart C. Haden, Michael S. Woodacre
  • Patent number: 4170687
    Abstract: Planographic printing plates for use without fountain solution, and especially suitable for imaging with an electrophotographic toner, have a surface containing a fluorinated polyurethane. In use only the image areas accept ink.
    Type: Grant
    Filed: September 29, 1977
    Date of Patent: October 9, 1979
    Assignee: Gestetner Limited
    Inventors: Leonard A. Spicer, Derek J. McGee, Ian H. Elson
  • Patent number: 4148767
    Abstract: The invention provides a novel ink for dry planographic printing. The new ink is based on a vehicle containing the reaction product of an oil-modified alkyd resin, a rosin-modified phenolic resin, and a diisocyanate and also a high viscosity silicone oil. The new ink can be used with planographic plates having an oleophobic surface and does not adhere to the non-image areas.
    Type: Grant
    Filed: September 29, 1977
    Date of Patent: April 10, 1979
    Assignee: Gestetner Limited
    Inventors: Leonard A. Spicer, Derek J. McGee