Charles W Stewart, Sr

This inventor holds 28 USPTO granted patents, primarily in Fluoropolymer Chemistry. Top assignee: E.i. Dupont De Nemours and Company. Active years: 1979-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Charles W Stewart, Sr. Retrieved from https://idiyas.com/inventor/charles-w-stewart-sr

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

USPTO Granted Patents = 28

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 17

Forward Citations = 622(Granted Patents)

Company Filing History:

28 out of 16,339

E.i. Dupont De Nemours and Company

patents

Years Active: 1979-2002

Loading Chart...

Areas of Expertise:

Copolymers

Fluorinated Olefins

Tetrafluoroethylene

Polyarylate

Flame Resistance

Elastomers

Processing Aids

Fluoroelastomers

High Tensile

Blends

Low Smoke

28 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6423798 - Copolymers of maleic anhydride or acid and fluorinated oleffins (2002-07-23),

2. 6228963 - Copolymers of maleic anhydride or acid and fluorinated olefins (2001-05-08),

3. 5637663 - Amorphous tetrafluoroethylene-hexafluoropropylene copolymers (1997-06-10),

4. 5547761 - Low melting tetrafluoroethylene copolymer and its uses (1996-08-20),

5. 5478905 - Amorphous tetrafluoroethylene/hexafluoropropylene copolymers (1995-12-26),

6. 5464904 - Low-melting tetrafluoroethylene copolymer and its uses (1995-11-07),

7. 5356986 - Plasticized fluoropolymers (1994-10-18),

8. 5266639 - Low-melting tetrafluorethylene copolymer and its uses (1993-11-30),

9. 5185116 - Preparing shaped structure of polyarylate copolymers having high tensile (1993-02-09),

10. 5132368 - Fluoropolymer process aids containing functional groups (1992-07-21),

11. 5064704 - Shaped structure of polyarylate copolymers having high tensile (1991-11-12),

12. 5057575 - Processing aid for polymers (1991-10-15),

13. 5051479 - Melt processable TFE copolymers with improved processability (1991-09-24),

14. 5013792 - Processing aid for polymers (1991-05-07),

15. 4963609 - Low smoke and flame-resistant composition (1990-10-16),

Certainly! Here is the article about inventor Charles W Stewart, Sr:

Title: Charles W Stewart, Sr: A Visionary Inventor Shaping the Future

Introduction:

Charles W Stewart, Sr, a visionary inventor based in Newark, DE (US), is a remarkable figure in the world of innovations and patents. With a total of 28 patents to his name, Stewart has made significant contributions that have impacted various industries.

Latest Patents:

Among his latest patents is the creation of copolymers of maleic anhydride or acid and fluorinated olefins. These novel copolymers, produced using innovative techniques involving solvents like perfluorinated alkyl carboxylic acid, have found applications in adhesives, coatings, and as compatibilizing agents for fluoropolymers.

Career Highlights:

Stewart's career is closely associated with E.I. DuPont de Nemours and Company, a renowned organization in the field of chemistry and materials science. His tenure at DuPont has been marked by a series of groundbreaking inventions that have pushed the boundaries of material science.

Collaborations:

Throughout his career, Stewart has collaborated with esteemed professionals in the industry, including noteworthy coworkers such as George R Chapman, Jr, and Richard A. Morgan. These collaborations have led to the development of innovative solutions and patents that have set new industry standards.

Conclusion:

In conclusion, Charles W Stewart, Sr stands as a visionary inventor whose passion for innovation has shaped the world we live in today. His relentless pursuit of excellence and creativity continues to inspire future generations of inventors and innovators, making him a true trailblazer in the realm of patents and inventions.

If you'd like more information or details on any specific aspect, feel free to ask!

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]