Patents by Inventor Craig N. Janssen

Craig N. Janssen 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).

  • Patent number: 8635100
    Abstract: A method includes identifying a plurality of facilities in a complex. Each facility is associated with a construction project. The method also includes determining a potential revenue associated with at least one of the facilities. The method further includes determining a cost associated with at least one of the facilities. In addition, the method includes generating a schedule of the construction projects using the identified potential revenue and the identified cost.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: January 21, 2014
    Inventor: Craig N. Janssen
  • Patent number: 5642429
    Abstract: A sound reproduction system includes a plurality of loudspeakers arranged in a spaced array which extends onto opposite sides of a center point. The spaced array includes a first pair of loudspeakers equally spaced apart from the center point and disposed at opposite ends of the array and a second pair of loudspeakers spaced inwardly from the first pair and also positioned on opposite sides of and equally spaced from the center point. The sound reproduction system further includes a low-pass filter having an input coupled to an output of a signal generator and an output coupled to an input of each one of the first pair of loudspeakers and a first band-pass filter having an input coupled to the output of the signal generator and an output coupled to an input of each one of the second pair of loudspeakers.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: June 24, 1997
    Inventor: Craig N. Janssen