This inventor holds 1 USPTO granted patent. Top assignee: Nts Amega West USA, Inc.. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Robert Mccullough: Inventor of a Drill-String Clutch Assembly
Introduction
Robert Mccullough is an inventor associated with Parkland County, Canada. His work includes a patented clutch assembly designed for use in wellbores and drill strings. The available information lists 1 patent and identifies Nts Amega West USA, Inc. as his company.
Latest Patents
Mccullough’s listed patent, “Clutch Assembly for a Drill String and Related Methods,” describes a clutch assembly that connects two sections of a drill string. It has a first assembly portion connected to one section and a second portion, including a driveshaft, connected to the other.
A releasable clutch mechanism selectively locks the two portions together rotationally. The design may also include a one-way bearing that permits driveshaft rotation in one direction while preventing rotation in the opposite direction. A diverter valve mechanism, which can be open or closed, is another described feature.
Career Highlights
The patent reflects work on a mechanical system intended for wellbore operations. Its combination of a releasable clutch, optional one-way bearing, and diverter valve provides different ways to manage rotation and flow within a drill-string assembly.
Collaborations
Mccullough is associated with Nts Amega West USA, Inc. The listed coworkers are Everett Philip Hagar and Lisa Ying Pui Yung.
Conclusion
Robert Mccullough’s listed invention focuses on a drill-string clutch assembly with features for controlling rotational engagement and supporting wellbore operations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile