Patents by Inventor Luther A. Harrison

Luther A. Harrison 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).

  • Pipe measurement, labeling and controls
    Patent number: 4701869
    Abstract: A combination of systems to measure the length of pipe sections and to label the pipe surface with machine readable labels. The combination also commits to memory the data and specifications read from the label or derived from correlative information already in memory. Summation of pipe joint data and specifications provide overall pipe string data. From the collective pipe string data, the reaction of the string to the input of physical forces can be predicted and evaluated.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: October 20, 1987
    Assignee: Stephen R. Callegari, Sr.
    Inventors: Stephen R. Callegari, Sr., Luther A. Harrison, Robert W. Salsman, Jr.