Patents by Inventor Keith W. Barr

Keith W. Barr 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).

  • SECURE VEHICLE TO VEHICLE PTC COMMUNICATION
    Publication number: 20240109564
    Abstract: A method is provided that can include activating at least two wireless communication channels in parallel, between a first wireless transceiver and a second wireless transceiver. Each of the at least two wireless communication channels can operate at a different radio carrier frequency, and the first wireless transceiver may be part of a first vehicle. The method can also include transmitting, by the first wireless transceiver, common information in parallel on the at least two wireless communication channels to the second wireless transceiver and deactivating the at least two wireless communication channels.
    Type: Application
    Filed: December 12, 2023
    Publication date: April 4, 2024
    Inventors: Padam Dhoj Swar, Carl L. Haas, Danial Rice, Rebecca W. Dreasher, Adam Hausmann, Matthew Steven Vrba, Edward J. Kuchar, James Lucas, Andrew Ryan Staats, Jerrid D. Chapman, Jeffrey D. Kernwein, Janmejay Tripathy, Stephen Craven, Tania Lindsley, Derek K. Woo, Ann K. Grimm, Scott Sollars, Phillip A. Burgart, James Allen Oswald, Shannon K. Struttmann, Stuart J. Barr, Keith Smith, Francois P. Pretorius, Craig K. Green, Kendrick Gawne, Irwin Morris, Joseph W. Gorman, Srivallidevi Muthusami, Mahesh Babu Natarajan, Jeremiah Dirnberger, Adam Franco
  • Aqueous conductivizing composition for conductivizing sheet material
    Patent number: 4739003
    Abstract: An aqueous conductivizing composition for conductivizing paper or other sheet material, for example for producing a conductive base for use in dielectric paper or other electrostatic imaging material, is produced by (a) removing sodium magnesium trifluoride impurity (neighborite) from a synthetic hectorite clay conductivizing agent, and (b) adding a binder. These measures reduce dust formation experienced in production or use of electrostatic imaging material incorporating a base which has been conductivized with a synthetic hectorite clay conductivising agent.
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: April 19, 1988
    Assignee: The Wiggins Teape Group Limited
    Inventors: Keith W. Barr, Vanessa D. Royston