Patents by Inventor John M. Hoffer

John M. Hoffer 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).

  • Measurement system having air temperature compensation between a target and a laser tracker
    Patent number: 9482755
    Abstract: A target is provided having a retroreflector. A body is provided having a spherical exterior portion, the body containing a cavity. The cavity is sized to hold the retroreflector, the cavity open to the exterior of the body and having at least one surface opposite the opening, the retroreflector at least partially disposed in the cavity, wherein the retroreflector and at least one surface define a space therebetween. A transmitter is configured to emit an electromagnetic signal. A first actuator is configured to initiate emission of the electromagnetic signal, wherein the transmitter and the first actuator are affixed to the body.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: November 1, 2016
    Assignee: FARO TECHNOLOGIES, INC.
    Inventors: Peter G. Cramer, Robert E. Bridges, Nils P. Steffensen, Robert C. Mehler, Kenneth Steffey, John M. Hoffer, Daniel G. Lasley
  • Absolute distance meter that measures a moving retroreflector
    Patent number: 7701559
    Abstract: A laser device and method capable of one or more dimensional absolute distance measurements and/or surface scanning and/or coordinate measurements of a moving external retroreflector or other moving target surfaces without using an incremental interferometer.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: April 20, 2010
    Assignee: Faro Technologies, Inc.
    Inventors: Robert E. Bridges, John M. Hoffer
  • ABSOLUTE DISTANCE METER THAT MEASURES A MOVING RETROREFLECTOR
    Publication number: 20090066932
    Abstract: A laser device and method capable of one or more dimensional absolute distance measurements and/or surface scanning and/or coordinate measurements of a moving external retroreflector or other moving target surfaces without using an incremental interferometer.
    Type: Application
    Filed: May 31, 2007
    Publication date: March 12, 2009
    Applicant: FARO TECHNOLOGIES, INC.
    Inventors: Robert E. Bridges, John M. Hoffer
  • Absolute distance meter that measures a moving retroreflector
    Patent number: 7352446
    Abstract: A laser device and method capable of one or more dimensional absolute distance measurements and/or surface scanning and/or coordinate measurements of a moving external retroreflector or other moving target surfaces without using an incremental interferometer.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: April 1, 2008
    Assignee: Faro Technologies, Inc.
    Inventors: Robert E. Bridges, John M. Hoffer