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For the Inventor, By the Inventor

Pittsford, NY, United States of America

George L Fletcher, Jr

This inventor holds 15 USPTO granted patents, primarily in Dye Chemistry. Top assignee: Eastman-Kodak Company. Active years: 1977-1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: George L Fletcher, Jr. Retrieved from https://idiyas.com/inventor/george-l-fletcher-jr

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

Calculating rank
USPTO Granted Patents = 15

% Patents Active = 100.0

Average Co-Inventor Count = 2.6

ph-index = 6

Forward Citations = 89(Granted Patents)


Location History:

  • Rochester, NY (US) (1977)
  • Pittsford, NY (US) (1977 - 1986)

Company Filing History:

goldMedal15 out of 21,605 
 
Eastman-Kodak Company
 patents

Years Active: 1977-1986

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Areas of Expertise:
Oxoindolizine
Indolizinone Dyes
Photothermographic Material
Vesicular Composition
Heat Sensitive Dye
Polysulfonamides
Imaging Processes
Dye-Retaining Elements
Water Soluble Binder
Cyclopropenone
Sulfonamide Compounds
Binder Overcoat
15 patents (USPTO):Explore Patents
1. 4577024 - Oxoindolizine and oxoindolizinium compounds useful as dyes (1986-03-18),
2. 4450093 - Indolizinone dyes and compositions, elements and methods using same (1984-05-22),
3. 4446223 - Recording and information record elements comprising oxoindolizine and (1984-05-01),
4. 4373021 - Indolizinone dyes and compositions, elements and methods using same (1983-02-08),
5. 4368247 - Photographic materials and processes comprising oxoindolizine and (1983-01-11),
6. 4283477 - Photothermographic material and process (1981-08-11),
7. 4247625 - Imaging processes, elements and compositions featuring dye-retaining (1981-01-27),
8. 4128422 - Cyclopropenone vesicular imaging composition, element and process (1978-12-05),
9. 4107155 - Polysulfonamides (1978-08-15),
10. 4106938 - Vesicular composition, element and process utilizing a diol (1978-08-15),
11. 4093463 - Water soluble binder overcoat on vesicular element containing N.sub.2 (1978-06-06),
12. 4081278 - Heat sensitive dye layers comprising a benzopinacol (1978-03-28),
13. 4064168 - N-(Vinylphenyl) sulfonamides (1977-12-20),
14. 4032518 - Sulfonamide compounds and polymers derived therefrom (1977-06-28),
15. 4032344 - Polysulfonamide vesicular binders and processes of forming vesicular (1977-06-28),

Title: The Innovative Contributions of George L. Fletcher, Jr.

Introduction

George L. Fletcher, Jr. is a notable inventor based in Pittsford, NY (US). He has made significant contributions to the field of imaging through his innovative work on dyes and compounds. With a total of 15 patents to his name, Fletcher has established himself as a key figure in his area of expertise.

Latest Patents

Fletcher's latest patents include groundbreaking work on oxoindolizine and oxoindolizinium compounds that are useful as dyes. These novel compounds are particularly valuable in imaging applications, such as laser recording and reading. The dyes are synthesized through various methods, including the reaction of cyclopropenones with pyridine compounds and the use of color-forming couplers. Another significant patent involves indolizinone dyes and compositions, which detail methods for forming images by reacting cyclopropenones with di- or tri-halogenated compounds in the presence of pyridine. This innovative approach allows for the controlled decomposition of cyclopropenones in areas exposed to activating radiation, preventing unwanted dye reactions.

Career Highlights

Fletcher has had a distinguished career, primarily working with Eastman Kodak Company. His work has not only advanced the field of imaging but has also contributed to the development of new materials and methods that enhance imaging technology.

Collaborations

Throughout his career, Fletcher has collaborated with esteemed colleagues, including Donald H. Wadsworth and Stewart H. Merrill. These partnerships have fostered a collaborative environment that has led to numerous advancements in their respective fields.

Conclusion

George L. Fletcher, Jr. is a prominent inventor whose work has significantly impacted the field of imaging through his innovative patents and collaborations. His contributions continue to influence the development of new technologies and materials in the industry.

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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