Patents by Inventor Cyrrus Gregory Lewis

Cyrrus Gregory Lewis 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).

  • Pre-stressed modular retaining wall system and method
    Patent number: 6402435
    Abstract: The present invention relates to a system and method for constructing a pre-stressed modular construction for supporting or retaining an applied load. In particular, the present invention relates to a system and method for pre-stressed modular retaining walls. The system comprises a plurality of header stacks constructed from a variety of header units. The header stacks are coupled by structural members. Active reinforcement elements are used to induce a pre-stressing force into the header stacks to support or retain the applied load. A method for constructing the modular construction is provided.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: June 11, 2002
    Inventor: Cyrrus Gregory Lewis