Upali Peter Weerasooriya

This inventor holds 34 USPTO granted patents and 19 published patent applications, plus 6 CIPO patents and 2 EPO patents, primarily in Surfactant Technology. Top assignees: The University of Texas System, Condea Vista Company, Vista Chemical Company. Active years: 1993-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Upali Peter Weerasooriya. Retrieved from https://idiyas.com/inventor/upali-peter-weerasooriya

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

USPTO Granted Patents = 34 (Patent Applications = 19)

% Patents Active = 88.2

CIPO Patents = 6 (Patent Applications = 5)

EPO Patents = 2

Average Co-Inventor Count = 3.0

ph-index = 10

Forward Citations = 199(Granted Patents)

Company Filing History:

19 out of 5,640

The University of Texas System

Vista Chemical Company

patents

4. 4 out of 6

Harcros Chemicals, Inc.

where one patent can have more than one assignee

Years Active: 1993-2025

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Areas of Expertise:

Surfactants

Enhanced Oil Recovery

Alkoxylation

Hydrophobe

Anionic Surfactants

Fatty Amides

Polyhydroxy

Co-Solvents

Quaternary Ammonium

Ethersulfate

Alkylamine

Styrylphenol

34 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12338382 - Surfactants having non-conventional hydrophobes (2025-06-24),

2. 10899693 - Alkoxylated co-solvents (2021-01-26),

3. 10876038 - Short hydrophobe anionic surfactants (2020-12-29),

4. 10190035 - Phenol-alkoxylate co-solvent surfactant composition (2019-01-29),

5. 10167421 - Phenol-alkoxylate co-solvent surfactant composition (2019-01-01),

6. 10106725 - Light co-solvent compositions (2018-10-23),

7. 9988346 - Large hydrophobe surfactants (2018-06-05),

8. 9862877 - Alkyl hydrophobe surfactants (2018-01-09),

9. 9783729 - Alkoxy carboxylate surfactants (2017-10-10),

10. 9296942 - Anionic polyalkoxy group comprising surfactants on basis of guerbet-alcohols, method of manufacture and use in enhanced oil recovery (EOR) applications (2016-03-29),

11. 9266821 - Process for making fatty amides (2016-02-23),

12. 9206347 - Quaternary ammonium surfactants (2015-12-08),

13. 9175207 - Surfactant-less alkaline-polymer formulations for recovering reactive crude oil (2015-11-03),

14. 9127210 - Short chain alkylamine alkoxylate compositions (2015-09-08),

15. 9109152 - Compositions and methods for controlling the stability of ethersulfate surfactants at elevated temperatures (2015-08-18),

Title: Upali Peter Weerasooriya: A Pioneer in Enhanced Oil Recovery

Introduction: Upali Peter Weerasooriya is an accomplished inventor based in Austin, TX, who has made significant contributions to the field of enhanced oil recovery (EOR). With a remarkable portfolio of 21 patents, Weerasooriya is recognized for his innovative approaches that enhance the efficiency of oil extraction processes.

Latest Patents: Among his latest patents, Weerasooriya has developed several groundbreaking compounds and compositions. One of these patents focuses on alkoxylated co-solvents, which are instrumental in improving the recovery of various crude oil compositions from reservoirs. This invention highlights the use of specific co-solvents and aqueous compositions to optimize the extraction process. Additionally, he has patented short hydrophobe anionic surfactants, which also aid in the recovery of crude oil from challenging reservoirs. These surfactants and their corresponding aqueous compositions demonstrate significant potential for enhancing EOR techniques.

Career Highlights: Throughout his career, Weerasooriya has worked with several reputable organizations, including the University of Texas System and Harcros Chemicals, Inc. His experience in these institutions has further solidified his expertise in the field of oil recovery and chemical compositions.

Collaborations: Collaboration has been a key part of Weerasooriya's career. He has worked alongside prominent professionals such as Gary A. Pope and Quoc P. Nguyen, enhancing the impact of his research and fostering innovation in EOR.

Conclusion: Upali Peter Weerasooriya stands out as a vital contributor to the field of enhanced oil recovery. His innovative patents and collaborations underline his commitment to developing effective solutions for oil extraction challenges. Through his work, Weerasooriya continues to push the boundaries of technology in the pursuit of increased efficiency in the oil industry.

Profile summary based on public USPTO records.