Chino, CA, United States of America

Gregory S Hewgill

This inventor holds 7 USPTO granted patents. Top assignee: Union Oil Company of California. Active years: 1987-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Gregory S Hewgill. Retrieved from https://idiyas.com/inventor/gregory-s-hewgill

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 6

Forward Citations = 193(Granted Patents)


Company Filing History:


Years Active: 1987-1992

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7 patents (USPTO):Explore Patents

Title: Gregory S. Hewgill: Innovator in Enhanced Oil Recovery Techniques

Introduction

Gregory S. Hewgill is a notable inventor based in Chino, California, with a focus on innovations in the field of oil recovery. He holds a total of seven patents, showcasing his expertise and contributions to the industry. His work primarily revolves around enhancing oil recovery techniques and improving the efficiency of subterranean formations.

Latest Patents

Hewgill's latest patents include an innovative method for enhanced oil recovery using hydrogen precursors. This technique involves in situ hydrogenation in a subterranean formation by introducing a non-gaseous hydrogen precursor into steam. The resulting composition is injected into oil-bearing formations to improve oil recovery. Another significant patent is for a scale removal treatment, which comprises an aqueous composition containing an aminopolycarboxylic acid and a water-soluble organosilicon compound. This composition is effective in removing scale from well equipment and stabilizing fine particles within the formation, leading to increased and more stable fluid flow.

Career Highlights

Hewgill has made significant strides in his career, particularly through his work at the Union Oil Company of California. His innovative approaches have contributed to advancements in oil recovery methods, making him a key figure in the industry.

Collaborations

Throughout his career, Hewgill has collaborated with notable colleagues, including Leonard J. Kalfayan and David R. Watkins. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Gregory S. Hewgill's contributions to the field of oil recovery through his patents and collaborative efforts highlight his role as an influential inventor. His work continues to impact the industry positively, paving the way for future innovations.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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