Patents by Inventor John Robert Welling

John Robert Welling 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).

  • Temperature compensated resonator and method
    Patent number: 6131256
    Abstract: A temperature compensated resonator (15) and method for making the temperature compensated resonator (15). The temperature compensated resonator (15) has a substrate (110) including a cavity (120, 160) and a resonator layer (150). A bonding medium (159, 160) couples the substrate (110) to the resonator layer (150). The resonator layer (150) is bonded atop the cavity (120, 160). A conductor (215) is included on the resonator layer (150). The conductor (215) heats the resonator layer (150) in response to a current passing through the conductor (215).
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: October 17, 2000
    Assignee: Motorola, Inc.
    Inventors: Michael Dydyk, John Robert Welling
  • Temperature compenated resonator and method
    Patent number: 5696423
    Abstract: A temperature compensated resonator (15) and method for making the temperature compensated resonator (15). The temperature compensated resonator (15) has a substrate (110) including a cavity (120, 160) and a resonator layer (150). A bonding medium (159, 160) couples the substrate (110) to the resonator layer (150). The resonator layer (150) is bonded atop the cavity (120, 160). A conductor (215) is included on the resonator layer (150). The conductor (215) heats the resonator layer (150) in response to a current passing through the conductor (215).
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: December 9, 1997
    Assignee: Motorola, Inc.
    Inventors: Michael Dydyk, John Robert Welling