Patents by Inventor Michael J. Kirchoff

Michael J. Kirchoff 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).

  • Omnidirectional light with protected in-ground light source
    Patent number: 6533446
    Abstract: A light, such as for an airport taxiway, in which a base includes a light source which outputs light. The light source may be an LED (light emitting diode) light source which is highly energy efficient and which has a long life. A light guide receives and guides light output from the light source. The light guide further extends out from the light source. A reflector is positioned in the light guide and reflects the light guided through the light guide to provide the appropriate illumination.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: March 18, 2003
    Assignee: Dialight Corporation
    Inventors: Yuming Chen, Michael J. Kirchoff, Robert L. Martin
  • Omnidirectional light with protected light source
    Publication number: 20020114170
    Abstract: A light, such as for an airport taxiway, in which a base includes a light source which outputs light. The light source may be an LED (light emitting diode) light source which is highly energy efficient and which has a long life. A light guide receives and guides light output from the light source. The light guide further extends out from the light source. A reflector is positioned in the light guide and reflects the light guided through the light guide to provide the appropriate illumination.
    Type: Application
    Filed: February 16, 2001
    Publication date: August 22, 2002
    Applicant: DIALIGHT CORPORATION
    Inventors: Yuming Chen, Michael J. Kirchoff, Robert L. Martin
  • Computer implemented method and a computer system for enforcing software licenses
    Patent number: 6006190
    Abstract: A software licensing enforcement product includes a shell utilizing a device specific hardware product to encrypt the install program and the run program to prevent non-authorized devices form installing or using a software product. The shell decrypts the run program to allow the authorized device to access the software product.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: December 21, 1999
    Assignee: Tartaroukos LLC
    Inventors: Marco T. Baena-Arnaiz, Benjamin T. Church, Michael J. Kirchoff, Harish Seshadri