Patents by Inventor Fred Larson

Fred Larson 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).

  • Preformed Duct Assembly
    Publication number: 20210071785
    Abstract: A duct bank assembly may include an elongate extending conduit with a length for receiving and passing through a cable or wire and an encasing body encasing the conduit along its longitudinal extent between a first mating end and an opposed second mating end of the body. Each mating end of the at least one elongate conduit has a male or female mating end for joining with a corresponding male or female mating end of an abutting duct bank assembly in a self-locking, self-sealing joint.
    Type: Application
    Filed: November 23, 2020
    Publication date: March 11, 2021
    Inventors: Matthew Pearson, Fred Larson
  • Preformed duct assembly
    Patent number: 10876661
    Abstract: A duct bank assembly may include an elongate extending conduit with a length for receiving and passing through a cable or wire and an encasing body encasing the conduit along its longitudinal extent between a first mating end and an opposed second mating end of the body. Each mating end of the at least one elongate conduit has a male or female mating end for joining with a corresponding male or female mating end of an abutting duct bank assembly in a self-locking, self-sealing joint.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: December 29, 2020
    Assignee: Forterra Pipe & Precast, LLC
    Inventors: Matthew Pearson, Fred Larson
  • PREFORMED DUCT ASSEMBLY
    Publication number: 20170299090
    Abstract: A duct bank assembly may include an elongate extending conduit with a length for receiving and passing through a cable or wire and an encasing body encasing the conduit along its longitudinal extent between a first mating end and an opposed second mating end of the body. Each mating end of the at least one elongate conduit has a male or female mating end for joining with a corresponding male or female mating end of an abutting duct bank assembly in a self-locking, self-sealing joint.
    Type: Application
    Filed: April 13, 2017
    Publication date: October 19, 2017
    Inventors: Matthew Pearson, Fred Larson