Weber City, VA, United States of America

William Ronald Darnell

This inventor holds 26 USPTO granted patents, primarily in Polymer Chemistry. Top assignees: Eastman Chemical Company, Eastman-Kodak Company. Active years: 1976-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: William Ronald Darnell. Retrieved from https://idiyas.com/inventor/william-ronald-darnell

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

Calculating rank

USPTO Granted Patents = 26

% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 8

Forward Citations = 189(Granted Patents)

Company Filing History:

13 out of 2,039

Eastman Chemical Company

patents

13 out of 21,605

Eastman-Kodak Company

patents

Years Active: 1976-2002

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Areas of Expertise:

Polyester

Polyamide

Condensation Polymers

Liquid Crystalline

Polycarbonate

Adhesives

Reinforced Compositions

Foaming Processes

Thermal Properties

Catalyst Residues

Polymer Blends

Cyclobutylene

26 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6417239 - Methods of making modified condensation polymers (2002-07-09),

2. 6403698 - Polyamide/emulsion polymer blends (2002-06-11),

3. 6353052 - Amide-type polymer/silicone polymer blends and processes of making the same (2002-03-05),

4. 6348163 - Liquid crystalline polyesters compositions containing aromatic phosphonites and a process for the preparation thereof (2002-02-19),

5. 6306946 - Liquid crystalline polyesters having a surprisingly good combination of a low melting point, a high heat distortion temperature, a low melt viscosity, and a high tensile elongation (2001-10-23),

6. 6255437 - Process for preparing poly (2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate) (2001-07-03),

7. 6180748 - Process for deactivating alkali metal catalyst residues in poly(2,2,4,4-tetramethyl-1,3-cyclobutylene carbonate residues (2001-01-30),

8. 6114474 - Process for deactivating polycarbonate catalyst residues (2000-09-05),

9. 6037436 - Process for preparing poly (2,2,4,4-tetramethyl-1,3-cyclobutylene (2000-03-14),

10. 5969083 - Liquid crystalline polyesters having a surprisingly good combination of (1999-10-19),

11. 5962622 - Process for preparing the polycarbonate of (1999-10-05),

12. 5856553 - Carbonic acid 3-methoxycarbonyloxy-2,2,4,4-tetramethyl-cyclobutyl ester (1999-01-05),

13. 5654395 - Reinforced polyester compositions and method of making same (1997-08-05),

14. 5066766 - Process for the preparation of poly(ester-carbonates) (1991-11-19),

15. 4820794 - Process for preparing polyketone in the presence of perfluoroalkyl (1989-04-11),

Title: The Innovative Contributions of William Ronald Darnell

Introduction: William Ronald Darnell, a prolific inventor based in Weber City, Virginia, holds an impressive portfolio of 26 patents. His contributions to the field of polymer chemistry have paved the way for advancements in various industrial applications. Darnell's inventive spirit and extensive expertise have established him as a significant figure within the realm of chemical engineering.

Latest Patents: Among his latest patents, Darnell has developed methods for creating modified condensation polymers. This groundbreaking invention involves a series of steps to prepare a polymer colloid system that is then introduced into a glycolysis reaction medium. The resulting product is a condensation polymer matrix that enhances material properties. Another noteworthy patent focuses on the creation of polyamide/emulsion polymer blends. This method includes preparing a polymer colloid system and introducing it into an amide-type polymerization reaction medium to yield an innovative polymer blend with enhanced characteristics.

Career Highlights: Darnell has contributed significantly to the chemical industry through his work at prominent companies, including Eastman Chemical Company and Eastman Kodak Company. His tenure at these organizations has allowed him to refine his skills and implement innovative solutions in polymer technology.

Collaborations: Throughout his career, Darnell has collaborated with distinguished colleagues, including Winston J. Jackson, Jr. and Theodore R. Walker. These partnerships have fostered a dynamic exchange of ideas and a collaborative approach to problem-solving in the field of polymer chemistry.

Conclusion: William Ronald Darnell's substantial contributions to innovation and invention in polymer technology have had a lasting impact on the industry. His patents not only illustrate his ingenuity but also highlight the importance of collaboration and experience in driving advancements. As Darnell continues to explore new avenues in his field, his work will undoubtedly inspire future innovators and researchers.

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]