Patents by Inventor Thomas M. Holt

Thomas M. Holt 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).

  • Methods and apparatus for an automatic file indexer
    Patent number: 6411970
    Abstract: The present invention provides exemplary software and related hardware for monitoring and managing documents and document properties. One embodiment provides a computer system (40) including a processor (42), a display (44) coupled to the processor, and a computer readable storage media (46) coupled to the processor. The storage media includes code that directs the processor to retrieve a first computer file from the storage media, and code that directs the processor to examine the first computer filed to determine if a plurality of desired properties are contained therein. If all of the desired properties are not contained within the first computer file, the storage media code directs the processor to create a first shadow file which is linked to the computer file so that the shadow file may contain the missing desired properties.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: June 25, 2002
    Assignee: Intergraph Corporation
    Inventors: Robert B. Aitken, Thomas M. Holt, Steve D. Scott, Mike Whitten
  • Electronic delay timer and alarm system
    Patent number: 5165107
    Abstract: A time delay and alarm system is provided to ensure safe operation of periodically activated apparatus having potentially dangerous moving parts. The system preferably employs a 555 type integrated timer circuit, a horn, and a pulse generator which causes the horn to produce a cyclical sound.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: November 17, 1992
    Inventors: Doyle W. Hand, Thomas M. Holt