This inventor holds 1 USPTO granted patent. Top assignee: Spm Oil & Gas Inc.. Active years: 2024.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2024
Title: John Steven Marquez, Jr.: Inventor of a Valve Stop and Suction Cover Platformed Assembly
Introduction
John Steven Marquez, Jr. is an inventor associated with Saginaw, Texas, and SPM Oil & Gas Inc. His patent work concerns components for the fluid end of a reciprocating pump assembly.
Latest Patents
Marquez is credited with 1 patent: “Valve stop and suction cover platformed assembly.” The invention describes a fluid-end cylinder with inlet and outlet ports and an access opening sealed by a cover. A valve stop sits partially within the fluid inlet and includes a spring retainer and a column portion. A curved, arc-shaped flange on the column portion is positioned between the cover and the cylinder’s access wall, integrating the valve stop with the cover arrangement.
Career Highlights
Marquez’s documented patent contribution focuses on the design and arrangement of components in reciprocating pump equipment. The patent identifies SPM Oil & Gas Inc. as his company affiliation.
Collaborations
Adalberto Cortes and Jeff Myers are listed as Marquez’s coworkers. The available information does not specify their roles in the patent or any direct collaboration with him.
Conclusion
John Steven Marquez, Jr.’s patent documents a pump assembly design that combines a valve stop and cover structure, reflecting his contribution to fluid-end equipment innovation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile