This inventor holds 1 USPTO granted patent. Top assignee: Chevron U.s.a. Inc.. Active years: 2026.
Company Filing History:
Years Active: 2026
Title: John Lloyd Rankin: Innovator in Subsea Completion Systems
Introduction
John Lloyd Rankin is a notable inventor based in Kingwood, TX (US). He has made significant contributions to the field of subsea technology, particularly through his innovative patent related to subsea completion systems. His work is essential for advancing the efficiency and reliability of underwater operations.
Latest Patents
Rankin holds a patent for a subsea completion system. This system includes a lower completion assembly (LCA) with a receptacle at its top end, forming a cavity within its wall. A first barrier is positioned inside the LCA cavity, creating a fluidic seal with the LCA wall. This barrier is designed to open when a specific differential force is reached. Additionally, the upper completion assembly (UCA) features a tubing string that also contains a barrier, which operates under similar principles. This innovative design enhances the functionality and safety of subsea operations.
Career Highlights
Rankin is currently employed at Chevron U.S.A. Inc., where he applies his expertise in subsea technologies. His work at Chevron has allowed him to contribute to various projects that focus on improving subsea completion systems. His innovative approach has garnered attention within the industry.
Collaborations
Rankin has collaborated with notable colleagues, including Thomas Gary Corbett and Matthew Ryan Ischy. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
John Lloyd Rankin's contributions to subsea completion systems exemplify the importance of innovation in the energy sector. His patent and work at Chevron U.S.A. Inc. highlight his role as a key player in advancing subsea technology.