Patents by Inventor Roger S. Knopf

Roger S. Knopf 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).

  • Electronic battery tester
    Patent number: 6891378
    Abstract: An electronic battery tester connectable to a battery through any one of multiple cables. The tester includes an input that can couple to any one of the multiple cables. Also included is a memory that contains multiple calibration values, each calibration value corresponds to a different one of the multiple cables. Test circuitry, which is coupled to the input and to the memory, detects which one of the multiple cables is coupled to the input, and tests the battery as a function of one of the multiple calibration values that corresponds to the detected one of the multiple cables.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: May 10, 2005
    Assignee: Midtronics, Inc.
    Inventors: Kevin I. Bertness, Clark E. Smith, Roger S. Knopf
  • Electronic battery tester
    Publication number: 20040189308
    Abstract: An electronic battery tester connectable to a battery through any one of multiple cables. The tester includes an input that can couple to any one of the multiple cables. Also included is a memory that contains multiple calibration values, each calibration value corresponds to a different one of the multiple cables. Test circuitry, which is coupled to the input and to the memory, detects which one of the multiple cables is coupled to the input, and tests the battery as a function of one of the multiple calibration values that corresponds to the detected one of the multiple cables.
    Type: Application
    Filed: March 25, 2003
    Publication date: September 30, 2004
    Inventors: Kevin I. Bertness, Clark E. Smith, Roger S. Knopf