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For the Inventor, By the Inventor

Kingsport, TN, United States of America

David R Fagerburg

This inventor holds 49 USPTO granted patents, primarily in Polyester Chemistry. Top assignees: Eastman-Kodak Company, Eastman Chemical Company. Active years: 1977-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: David R Fagerburg. Retrieved from https://idiyas.com/inventor/david-r-fagerburg

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

USPTO Granted Patents = 49

% Patents Active = 100.0

Average Co-Inventor Count = 2.3

ph-index = 13

Forward Citations = 623(Granted Patents)


Company Filing History:

goldMedal39 out of 21,604 
 
Eastman-Kodak Company
 patents
silverMedal9 out of 2,039 
 
Eastman Chemical Company
 patents
where one patent can have more than one assignee

Years Active: 1977-2002

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Areas of Expertise:
Copolymers
Polyester Blends
UV Stabilization
Aromatic Imide
Gas Barrier Properties
Poly(arylene Sulfide)
Liquid Crystalline Polyesters
Bonding Compositions
Fluorinated Polymers
Thermal Stability
Molecular Weight
Ultraviolet Absorbers
49 patents (USPTO):Explore Patents
1. 6368724 - Copolyester containing isophthalic acid, 1,4-cyclohexanedimethanol and an ultraviolet light absorbing compound and articles made therefrom (2002-04-09),
2. 6352783 - Copolyester containing 4,4'-biphenyldicarboxylic acid, 1,4-cyclohexanedimethanol and an ultraviolet light absorbing compound and articles made therefrom (2002-03-05),
3. 6265072 - UV-stabilized polymeric structures (2001-07-24),
4. 6254950 - Polyester phenylenedi (oxyacetic acid) copolyester blends having improved gas barrier properties (2001-07-03),
5. 6218450 - Copolyester containing isophthalic acid, 1,4-cyclohexanedimethanol, 4,4′-biphenyldicarboxylic acid and an ultraviolet light absorbing compound and articles made therefrom (2001-04-17),
6. 5783307 - UV stabilized multi-layer structures with detectable UV protective (1998-07-21),
7. 5558912 - Blends of ultraviolet absorbers and polyesters (1996-09-24),
8. 5480926 - Blends of ultraviolet absorbers and polyesters (1996-01-02),
9. 5386069 - Process for preparation of difluoro-tetraiodobenzene (1995-01-31),
10. 5276111 - Blends of copoly(arylene sulfide) and poly(aryl sulfone) (1994-01-04),
11. 5258489 - Fluorinated poly(arylene sulfide)(arylene disulfide) (1993-11-02),
12. 5241038 - Method for the preparation of aromatic imide sulfide polymers (1993-08-31),
13. 5182345 - Blends of copoly(arylene sulfide) and polcarbonate (1993-01-26),
14. 5180775 - Blends of copoly(arylene sulfide) and ethylene-propylene rubber (1993-01-19),
15. 5155183 - Process for the preparation of copoly(arylene sulfide) having an (1992-10-13),

Title: David R. Fagerburg: Innovator in Copolyester Technology

Introduction

David R. Fagerburg, based in Kingsport, TN, is a prolific inventor renowned for his contributions to the field of copolyester technology. With an impressive portfolio of 49 patents, Fagerburg has made significant advancements that enhance the durability and functionality of materials resistant to ultraviolet radiation.

Latest Patents

Fagerburg's most recent patents include innovations in copolyester blends designed to withstand ultraviolet light. One notable patent describes a copolyester containing isophthalic acid, 1,4-cyclohexanedimethanol, and an ultraviolet light-absorbing compound. This copolyester blend combines a polyethylene terephthalate-based copolyester with specific ultraviolet absorbers, allowing the creation of UV radiation-resistant thermoformed articles. Another significant patent features a copolyester containing 4,4'-biphenyldicarboxylic acid, which also enhances UV resistance by utilizing a similar structure and composition.

Career Highlights

Throughout his career, David R. Fagerburg has made remarkable contributions while working for prominent companies such as Eastman Kodak Company and Eastman Chemical Company. His role in these organizations spans various aspects of material science and engineering, where his innovations in copolyester chemistry have positioned him at the forefront of this technology sector.

Collaborations

Fagerburg has had the opportunity to work alongside esteemed colleagues, including Joseph J. Watkins and Paul B. Lawrence. Their collaborative efforts have contributed to the development of cutting-edge materials and have further established the importance of teamwork in advancing technological innovations.

Conclusion

David R. Fagerburg's dedication to innovation in copolyester technology showcases the impact of his work in creating materials that offer enhanced protection against ultraviolet radiation. With 49 patents to his name and a solid career foundation, Fagerburg continues to be a driving force in the development of new materials that meet the demands of modern applications.

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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