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For the Inventor, By the Inventor

San Jose, CA, United States of America

Carlton G Willson

USPTO Granted Patents = 26

Average Co-Inventor Count = 4.4

ph-index = 16

Forward Citations = 1,215(Granted Patents)


Company Filing History:

goldMedal24 out of 164,108 
 
International Business Machines Corporation
 patents
silverMedal1 out of 1,194 
 
Hoechst Celanese Corporation
 patents
bronzeMedal1 out of 507 
 
Clariant Finance (bvi) Limited
 patents
4. 1 out of 832,680 
Other
 patents
where one patent can have more than one assignee

Years Active: 1981-1998

where 'Filed Patents' based on already Granted Patents

26 patents (USPTO):
1. 5807947 - Copolymers 4-hydroxystyrene and alkyl substituted-4-hydroxystyrene (1998-09-15),
2. 5545509 - Photoresist composition with photosensitive base generator (1996-08-13),
3. 5342727 - Copolymers of 4-hydroxystyrene and alkyl substituted-4-hydroxystyrene in (1994-08-30),
4. 5322765 - Dry developable photoresist compositions and method for use thereof (1994-06-21),
5. 5270151 - Spin on oxygen reactive ion etch barrier (1993-12-14),
6. 5250395 - Process for imaging of photoresist including treatment of the (1993-10-05),
7. 5055439 - Photoacid generating composition and sensitizer therefor (1991-10-08),
8. 4939070 - Thermally stable photoresists with high sensitivity (1990-07-03),
9. 4908298 - Method of creating patterned multilayer films for use in production of (1990-03-13),
10. 4853315 - O-quinone diazide sulfonic acid monoesters useful as sensitizers for (1989-08-01),
11. 4810601 - Top imaged resists (1989-03-07),
12. 4800152 - Negative resist compositions (1989-01-24),
13. 4767723 - Process for making self-aligning thin film transistors (1988-08-30),
14. 4690838 - Process for enhancing the resistance of a resist image to reactive ion (1987-09-01),
15. 4657845 - Positive tone oxygen plasma developable photoresist (1987-04-14),

Title: The Innovative Contributions of Carlton G. Willson

Introduction

Carlton G. Willson, based in San Jose, California, is a prolific inventor with an impressive portfolio of 26 patents. His work primarily focuses on advanced polymer compositions and photoresist technologies, which are crucial in various industrial applications, especially in electronics.

Latest Patents

Among his latest innovations, Willson has developed a unique copolymer combining 4-hydroxystyrene with alkyl-substituted derivatives. This copolymer is characterized by a molecular weight ranging from approximately 800 to 100,000 with a specific monomer ratio, making it versatile for various applications. Additionally, he has created a groundbreaking photoresist composition featuring a photosensitive base generator, significantly enhancing the manufacturing processes of integrated circuits.

Career Highlights

Over his career, Carlton G. Willson has worked with several notable companies, including International Business Machines Corporation, better known as IBM. His contributions in these roles have further cemented his reputation as a leading innovator in materials science.

Collaborations

Throughout his career, Willson has collaborated with esteemed colleagues, including Scott Arthur MacDonald and Hiroshi Ito. These partnerships have undoubtedly enriched his research and development efforts, leading to significant advancements in his field.

Conclusion

Carlton G. Willson’s innovative spirit and dedication to advancing polymer and photoresist technologies continue to propel him as a notable figure in the world of patents and inventions. His contributions not only advance scientific knowledge but also enhance practical applications in various industries, ensuring his legacy as an important inventor.

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