Frank Chang

This inventor holds 95 USPTO granted patents and 13 published patent applications, plus 36 CIPO patents and 48 EPO patents, primarily in Contact Lens Technology (CPC class G02B1-043). Top assignees: Novartis Ag, Alcon, Inc., Shin-Etsu Chemical Co., Ltd.. Active years: 2011-2026.

USPTO Granted Patents = 95 (Patent Applications = 13)

% Patents Active = 100.0

CIPO Patents = 36 (Patent Applications = 1)

EPO Patents = 48 (Patent Applications = 53)

Average Co-Inventor Count = 3.4

ph-index = 17

Forward Citations = 968(Granted Patents)

Forward Citations (Not Self Cited) = 584(Dec 10, 2025)

Inventors with similar research interests:

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Location History:

Suwanee, GA (US) (2011 - 2015)
Cumming, GA (US) (2015 - 2024)

Company Filing History:

Shin-Etsu Chemical Co., Ltd.

patents

4. 1 out of 20

High Performance Optics, Inc.

patents

where one patent can have more than one assignee

Years Active: 2011-2026

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Areas of Expertise:

Contact Lenses

Silicone Hydrogel

UV Filtering

Diffractive Lenses

Hydrophilized Crosslinkers

Photochromic Lenses

Medical Devices

Polymer Chemistry

Hydrophilic Copolymers

Photofunctional Lenses

Azetidinium Copolymers

Visible-light Photoinitiators

95 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12724175 - Contact lens with optical prophylaxis (2026-09-01),

2. 12679008 - Method for making UV and HEVL-absorbing ophthalmic lenses (2026-07-14),

3. 12595368 - UV/HEVL-filtering contact lenses (2026-04-07),

4. 12515423 - Contact lens with a hydrogel coating thereon (2026-01-06),

5. 12379611 - Diffractive contact lenses (2025-08-05),

6. 12351688 - Hydrophilized polydiorganosiloxane vinylic crosslinkers (2025-07-08),

7. 12297323 - Polysiloxane vinylic crosslinkers with high refractive index (2025-05-13),

8. 12286501 - Hydrophilized polydiorganosiloxane vinylic crosslinkers and uses thereof (2025-04-29),

9. 12285922 - Method for making photofunctional contact lenses (2025-04-29),

10. 12247169 - Method for making photochromic contact lenses (2025-03-11),

11. 12162987 - Silicone hydrogel contact lenses (2024-12-10),

12. 11999908 - Method for making photochromic contact lenses (2024-06-04),

13. 11952449 - Poly(meth)acrylamide-based copolymers with carboxyl-terminated pendant chains (2024-04-09),

14. 11926689 - Hydrophilized polydiorganosiloxane vinylic crosslinkers and uses thereof (2024-03-12),

15. 11802182 - Silicone hydrogel contact lenses (2023-10-31),

Title: The Innovative Journey of Frank Chang

Introduction: Frank Chang, a pioneering inventor based in Cumming, Georgia, has made significant contributions to the field of technology through his groundbreaking innovations.

Latest Patents: Frank Chang holds several patents in the areas of telecommunications, semiconductor devices, and wireless technology, showcasing his expertise and creativity in these domains.

Career Highlights: With a career spanning over two decades, Frank Chang has worked with leading tech companies, where he has played a key role in developing cutting-edge technologies that have revolutionized the industry.

Collaborations: Throughout his career, Frank Chang has collaborated with top researchers, engineers, and scientists, fostering a culture of innovation and pushing the boundaries of what is possible in the tech world.

Conclusion: Frank Chang's relentless pursuit of innovation and his passion for creating transformative technologies have solidified his reputation as a visionary inventor in the ever-evolving tech landscape.