Patents by Inventor Leland R. Robichaux

Leland R. Robichaux 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).

  • Semi-active heave compensation system for marine vessels
    Patent number: 5209302
    Abstract: A semiactive heave compensation system for marine vessels, especially floating offshore drilling rigs, is described. The system can be installed in its entirety or can be used to modify existing passive systems by including heave and compensating sensors a microprocessor and a responsive operator to act upon the compensation elements of the system.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: May 11, 1993
    Assignee: RETSCO, Inc.
    Inventors: Leland R. Robichaux, Jan T. Hatleskog