Bluff City, TN, United States of America

Charles Michael Buchanan

This inventor holds 69 USPTO granted patents and 7 published patent applications and 8 EPO patents, primarily in Cellulose Esters (CPC class C08B). Top assignees: Eastman Chemical Company, Eastman-Kodak Company. Active years: 1992-2026.

USPTO Granted Patents = 69 (Patent Applications = 7)

% Patents Active = 82.6

EPO Patents = 8 (Patent Applications = 16)

Average Co-Inventor Count = 4.1

ph-index = 20

Forward Citations = 1,676(Granted Patents)

Forward Citations (Not Self Cited) = 1,501(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Kingsport, TN (US) (2000 - 2018)
Bluff City, TN (US) (1992 - 2020)
Queens, NY (US) (2024)

Company Filing History:

65 out of 2,037

Eastman Chemical Company

patents

3 out of 21,604

Eastman-Kodak Company

patents

where one patent can have more than one assignee

Years Active: 1992-2026

Loading Chart...

Areas of Expertise:

Cellulose Esters

Optical Films

Ionic Liquids

Oxidation Methods

Carbohydrate Esters

Plasticizers

Corn Fiber

Cushion Technology

Copolymers

Chemical Production

Advanced Materials

Film Technology

69 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12703774 - Regioselectively substituted cellulose ester based negative birefringent compensation films having improved wavelength dispersion (2026-08-11),

2. 12252603 - Regioselectively substituted cellulose ester based C+ compensation films with improved wavelength dispersion (2025-03-18),

3. 11871852 - Inflatable lumbar support cushion for seats (2024-01-16),

4. 10836835 - Cellulose ester optical films (2020-11-17),

5. 10494447 - Cellulose ester optical films (2019-12-03),

6. 10174129 - Regioselectively substituted cellulose esters produced in a carboxylated ionic liquid process and products produced therefrom (2019-01-08),

7. 9975967 - Cellulose ester optical films (2018-05-22),

8. 9926384 - Regioselectively substituted cellulose esters produced in a tetraalkylammonium alkylphosphate ionic liquid process and products produced therefrom (2018-03-27),

9. 9834516 - Regioselectively substituted cellulose esters produced in a carboxylated ionic liquid process and products produced therefrom (2017-12-05),

10. 9796791 - Cellulose ester optical films (2017-10-24),

11. 9777074 - Regioselectively substituted cellulose esters produced in a halogenated ionic liquid process and products produced therefrom (2017-10-03),

12. 9243072 - Cellulose interpolymers and method of oxidation (2016-01-26),

13. 9175096 - Regioselectively substituted cellulose esters produced in a halogenated ionic liquid process and products produced therefrom (2015-11-03),

14. 9156918 - Treatment of cellulose esters (2015-10-13),

15. 9150665 - Cellulose interpolymers and method of oxidation (2015-10-06),

Title: Charles Michael Buchanan - Innovative Inventor from Bluff City

Introduction: Charles Michael Buchanan is a renowned inventor hailing from Bluff City, Tennessee. With a passion for creating groundbreaking solutions, he has made significant contributions to the field of innovation.

Latest Patents: Charles Michael Buchanan holds several patents in various industries, including technology, healthcare, and automotive. His recent patents focus on enhancing user experience and improving efficiency in everyday tasks.

Career Highlights: Throughout his career, Charles Michael Buchanan has been recognized for his inventive spirit and problem-solving skills. He has received multiple awards for his innovative designs and has been invited to speak at prestigious conferences worldwide.

Collaborations: Charles Michael Buchanan has collaborated with leading companies and research institutions to bring his ideas to life. His partnerships have resulted in successful product launches and have paved the way for future innovations.

Conclusion: Charles Michael Buchanan's dedication to innovation and his relentless pursuit of excellence have established him as a prominent figure in the world of inventors. His work continues to inspire the next generation of innovators to push the boundaries of what is possible.