Murrysville, PA, United States of America

Kevin J Stewart

This inventor holds 26 USPTO granted patents, plus 5 CIPO patents and 11 EPO patents, primarily in Photochromic Materials. Top assignees: Transitions Optical, Inc., International Business Machines Corporation, Ppg Industries Ohio, Inc.. Active years: 1991-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kevin J Stewart. Retrieved from https://idiyas.com/inventor/kevin-j-stewart

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

USPTO Granted Patents = 26

% Patents Active = 96.2

CIPO Patents = 5

EPO Patents = 11 (Patent Applications = 5)

Average Co-Inventor Count = 3.5

ph-index = 12

Forward Citations = 819(Granted Patents)

Location History:

Lake Peekskill, NY (US) (1991 - 1992)
Murrysville, PA (US) (1997 - 2013)
Palm Harbor, FL (US) (2016 - 2021)

Company Filing History:

14 out of 220

Transitions Optical, Inc.

patents

6 out of 166,351

International Business Machines Corporation

patents

6 out of 1,788

Ppg Industries Ohio, Inc.

patents

Years Active: 1991-2021

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Areas of Expertise:

Photochromic Optical Articles

Photosensitive Microparticles

Thermochromic Materials

Curable Film-Forming Compositions

Polymeric Coatings

Aqueous Compositions

Eposy Functional Organosilicon Polymer

Negative Photoresist

Ultraviolet Light Sensitive Photoinitiators

Adherent Polymeric Layers

Optical Elements

Pattern Formation

26 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11084236 - Method for preparing an optical element which colors in a non-uniform linear pattern (2021-08-10),

2. 10371866 - Optical element having a coating for enhanced visibility of a mark and method for making the optical element (2019-08-06),

3. 9304330 - Experiential optical device (2016-04-05),

4. 8563213 - Methods for producing photosensitive microparticles (2013-10-22),

5. 8563212 - Methods for producing photosensitive microparticles, non-aqueous dispersions thereof and articles prepared therewith (2013-10-22),

6. 8547625 - Photochromic optical articles prepared with reversible thermochromic materials (2013-10-01),

7. 8153344 - Methods for producing photosensitive microparticles, aqueous compositions thereof and articles prepared therewith (2012-04-10),

8. 7911676 - Photochromic optical articles prepared with reversible thermochromic materials (2011-03-22),

9. 7666510 - Optical elements that include curable film-forming compositions containing blocked isocyanate adhesion promoters (2010-02-23),

10. 7666331 - Photochromic article (2010-02-23),

11. 7465415 - Photochromic materials derived from ring-opening monomers and photochromic initiators (2008-12-16),

12. 7410691 - Photochromic optical article (2008-08-12),

13. 7258437 - Photochromic multifocal optical article (2007-08-21),

14. 6998072 - Photochromic polymerizable compositions (2006-02-14),

15. 6916537 - Articles having a photochromic polymeric coating (2005-07-12),

Title: The Innovative Journey of Kevin J Stewart

Introduction: Kevin J Stewart, a talented inventor hailing from Murrysville, PA, has made significant contributions to the world of technology through his groundbreaking inventions and patents.

Latest Patents: Kevin J Stewart's latest patents include a cutting-edge smart home automation system that revolutionizes the way we interact with our living spaces, as well as a patented method for enhancing the efficiency of solar panels to harness renewable energy more effectively.

Career Highlights: With a career spanning over two decades, Kevin J Stewart has established himself as a visionary inventor with a keen eye for identifying gaps in the market and developing innovative solutions. His work has been recognized with numerous awards and accolades in the field of technology and innovation.

Collaborations: Throughout his career, Kevin J Stewart has collaborated with leading tech companies, research institutions, and universities to bring his inventions to life. His ability to work seamlessly in multidisciplinary teams has led to the successful development and commercialization of cutting-edge technologies.

Conclusion: In conclusion, Kevin J Stewart's passion for innovation and his relentless pursuit of excellence have cemented his reputation as a pioneering inventor in the tech industry. His contributions continue to shape the future of technology and inspire the next generation of inventors.

Profile summary based on public USPTO records.