Patents by Inventor Marek Daneshfar

Marek Daneshfar 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).

  • Method and apparatus for monitoring electrical devices
    Patent number: 5248967
    Abstract: The condition of signal lamps (R1, R2) in a traffic light system is monitored by compiling a table of power consumption levels at different levels of applied voltage. The table is then used to adjust measured levels of power consumption at intervals during the service life of the traffic light system. A fault condition is signalled if the adjusted values differ by more than a predetermined amount.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: September 28, 1993
    Inventor: Marek Daneshfar