Patents by Inventor Eric Dale Larson

Eric Dale 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).

  • Drilling Riser Adapter Connection with Subsea Functionality
    Publication number: 20120222865
    Abstract: A drilling riser adapter variably connects and releases a riser from a subsea wellhead assembly. The drilling riser adapter has a hydraulically actuated engagement assembly for selectively engaging and disengaging a lower end of the marine riser. The drilling riser adapter also includes a control panel communicatively coupled to the engagement assembly for actuating the engagement assembly to engage and disengage the lower end of the marine riser. The drilling riser adapter also includes a hydraulic fluid pressure receptacle on the control panel for engagement by a remotely operated vehicle to supply hydraulic fluid pressure to the engagement assembly. The drilling riser adapter may be actuated subsea to release a first riser from the wellhead assembly, and connect to a second riser.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 6, 2012
    Applicant: Vetco Gray Inc.
    Inventors: Eric Dale Larson, Robert Allen Blue