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For the Inventor, By the Inventor

Claremont, CA, United States of America

Leonard J Kalfayan

This inventor holds 11 USPTO granted patents. Top assignee: Union Oil Company of California. Active years: 1984-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Leonard J Kalfayan. Retrieved from https://idiyas.com/inventor/leonard-j-kalfayan

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

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 2.6

ph-index = 9

Forward Citations = 307(Granted Patents)


Location History:

  • Pasadena, CA (US) (1985 - 1986)
  • Claremont, CA (US) (1984 - 1991)
  • Fullerton, CA (US) (1992)

Company Filing History:

goldMedal11 out of 1,113 
 
Union Oil Company of California
 patents

Years Active: 1984-1992

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11 patents (USPTO):Explore Patents
1. 5105887 - Enhanced oil recovery technique using hydrogen precursors (1992-04-21),
2. 5051197 - Scale removal treatment (1991-09-24),
3. 5039434 - Acidizing composition comprising organosilicon compound (1991-08-13),
4. 4992182 - Scale removal treatment (1991-02-12),
5. 4787453 - Permeability stabilization in subterranean formations containing (1988-11-29),
6. 4708207 - Scale removal treatment (1987-11-24),
7. 4646835 - Acidizing method (1987-03-03),
8. 4580633 - Increasing the flow of fluids through a permeable formation (1986-04-08),
9. 4549609 - Treating fines-containing earthen formations (1985-10-29),
10. 4498538 - Method for maintaining the permeability of fines-containing formations (1985-02-12),
11. 4479543 - Method for deeper penetrating acidizing of siliceous formations (1984-10-30),

Title: Leonard J Kalfayan: Innovator in Enhanced Oil Recovery Techniques

Introduction

Leonard J Kalfayan is a prominent inventor based in Claremont, CA, with a remarkable portfolio of 11 patents. His work primarily focuses on innovative techniques in the field of oil recovery and treatment processes.

Latest Patents

Among his latest patents is an enhanced oil recovery technique using hydrogen precursors. This method involves in situ hydrogenation in a subterranean formation by introducing a non-gaseous hydrogen precursor into steam. The resulting composition is injected into the oil-bearing subterranean formation 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, thereby enhancing fluid flow through treated formations and wells.

Career Highlights

Leonard Kalfayan has made significant contributions to the field of oil recovery through his innovative patents. His work has been instrumental in developing techniques that improve efficiency and effectiveness in oil extraction processes.

Collaborations

He has collaborated with notable coworkers, including David R Watkins and Gregory S Hewgill, who have contributed to his research and development efforts.

Conclusion

Leonard J Kalfayan's contributions to the field of enhanced oil recovery and treatment processes highlight his innovative spirit and dedication to advancing technology in the oil industry. His patents reflect a commitment to improving efficiency and sustainability in oil extraction methods.

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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