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For the Inventor, By the Inventor

Yorba Linda, CA, United States of America

Hoai T Dovan

This inventor holds 26 USPTO granted patents, primarily in Gel Technology. Top assignee: Union Oil Company of California. Active years: 1983-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hoai T Dovan. Retrieved from https://idiyas.com/inventor/hoai-t-dovan

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

USPTO Granted Patents = 26

% Patents Active = 100.0

Average Co-Inventor Count = 2.2

ph-index = 14

Forward Citations = 694(Granted Patents)


Location History:

  • Fullerton, CA (US) (1983 - 1987)
  • Brea, CA (US) (1985 - 1988)
  • Yorba Linda, CA (US) (1992 - 1999)

Company Filing History:

goldMedal26 out of 1,113 
 
Union Oil Company of California
 patents

Years Active: 1983-1999

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Areas of Expertise:
Ultra-High Temperature
Gelation Time
Subterranean Permeability
Crosslinked Polymers
Hydroxyethylcellulose
Foamed Gels
Drilling Mud
Fluid Containment
Injectivity
Formation Recovery
26 patents (USPTO):Explore Patents
1. 5957203 - Ultra-high temperature stable gels (1999-09-28),
2. 5762141 - Ultra-high temperature stable gels (1998-06-09),
3. 5617920 - Method for modifying gelation time of organically crosslinked, aqueous (1997-04-08),
4. 5486312 - High temperature stable gels (1996-01-23),
5. 5418217 - Composition for selectively reducing subterranean formation permeability (1995-05-23),
6. 5335733 - Method for delaying gelation of a gelable polymer composition injected (1994-08-09),
7. 5291949 - Method for inhibiting caustic flood breakthrough (1994-03-08),
8. 5268112 - Gel-forming composition (1993-12-07),
9. 5263540 - Crosslinked hydroxyethylcellulose and its uses (1993-11-23),
10. 5246073 - High temperature stable gels (1993-09-21),
11. 5244042 - Lanthanide-crosslinked polymers for subterranean injection (1993-09-14),
12. 5226480 - Recovery system containing lanthanide-crosslinked polymers (1993-07-13),
13. 5225090 - Visible gels prepared using stainless steel as a crosslinking agent (1993-07-06),
14. 5213446 - Drilling mud disposal technique (1993-05-25),
15. 5211858 - Lanthanide-crosslinked polymers for subterranean fluid containment (1993-05-18),

Title: Innovations of Hoai T. Dovan in Polymer Chemistry

Introduction

Hoai T. Dovan is a notable inventor based in Yorba Linda, CA, with a prolific career marked by the development of 26 patents. His innovative contributions primarily focus on advanced materials, specifically cationic polymer-containing gels, which have significant applications in various industries, particularly in settings facing extreme temperature conditions.

Latest Patents

Among his most recent patents, Dovan has introduced ultra-high temperature stable gels, which are designed to remain stable in both soft and hard waters at elevated temperatures. This innovation addresses a critical need in industries that operate under severe environmental conditions, providing reliability and performance where conventional materials may fail.

Career Highlights

Dovan's impressive portfolio of 26 patents showcases his dedication to advancing polymer research and application. He is affiliated with the Union Oil Company of California, where he has been instrumental in developing cutting-edge solutions in the field of material science.

Collaborations

Throughout his career, Hoai T. Dovan has worked alongside prominent colleagues, including Richard D. Hutchins and Burton B. Sandiford. These collaborations have fostered a dynamic exchange of ideas, enhancing the innovative capacity of their projects.

Conclusion

Hoai T. Dovan's contributions to the field of polymer chemistry through his patents reflect his commitment to innovation and excellence. His work not only advances scientific understanding but also opens new avenues for practical applications in industries that rely on high-performance materials.

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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