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For the Inventor, By the Inventor

Ann Arbor, MI, United States of America

Byung Jin Chang

This inventor holds 57 USPTO granted patents and 5 published patent applications, primarily in Medical Illumination (CPC class F21V). Top assignees: General Scientific Corporation, Kaiser Optical Systems Inc., General Scientific Corp. / Surgitel. Active years: 1981-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Byung Jin Chang. Retrieved from https://idiyas.com/inventor/byung-jin-chang

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

USPTO Granted Patents = 57 

% Patents Active = 87.7

Average Co-Inventor Count = 1.1

ph-index = 20

Forward Citations = 946(Granted Patents)

Forward Citations (Not Self Cited) = 877(Dec 10, 2025)


Inventors with similar research interests:


Company Filing History:

goldMedal39 out of 46 
 
General Scientific Corporation
 patents
silverMedal7 out of 74 
 
Kaiser Optical Systems Inc.
 patents
bronzeMedal6 out of 6 
 
General Scientific Corp. / Surgitel
 patents
4. 1 out of 110 
 
Environmental Research Institute of Michigan
 patents
5. 4 out of 834,513 
Other
 patents

Years Active: 1981-2025

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Areas of Expertise:
Medical Illumination
Ergonomic Loupes
LED Technology
Head-Mounted Accessories
Optical Mounting
Adjustable Iris
Through-the-Lens Loupes
Voice-Controlled Operation
High-Efficiency Illuminators
Nose Pads
Clip-On Systems
Telemicroscopic Loupes
57 patents (USPTO):Explore Patents
1. 12386206 - Ergonomic loupes with beam-redirecting prisms (2025-08-12),
2. D1057238 - LED light (2025-01-07),
3. 12140818 - Multifunctional mounting assembly for wrap-around eyeglass frames (2024-11-12),
4. 12000549 - Head-mounted medical/dental accessories with voice-controlled operation (2024-06-04),
5. D1027016 - Wrap-around eyeglass frames with bridge mounting structure (2024-05-14),
6. 11506365 - Head-mountable illuminators with user-selectable color temperature (2022-11-22),
7. 11402658 - Removable, adjustable wire arms for nose pads (2022-08-02),
8. 11112090 - Head-mounted LED light with integrated, adjustable iris (2021-09-07),
9. D924407 - Pair of removable, adjustable wire arms for nose pads (2021-07-06),
10. 11013573 - Head-mounted illuminator with capacitive proximity control (2021-05-25),
11. D908220 - Pair of removable, adjustable wire arms for nose pads (2021-01-19),
12. D908219 - Pair of removable, adjustable wire arms for nose pads (2021-01-19),
13. 10842002 - Head-mounted medical/dental accessories with voice-controlled operation (2020-11-17),
14. 10066816 - Medical/dental headlamp with adjustable proximity on/off sensor (2018-09-04),
15. 9494299 - High-efficiency LED illuminator with improved beam quality and ventilated housing (2016-11-15),

Title: Byung Jin Chang: Innovator in Optical Technologies

Introduction

Byung Jin Chang is a highly accomplished inventor based in Ann Arbor, MI, known for his significant contributions to optical technologies. With an impressive portfolio of 56 patents, Chang has established himself as a leading figure in innovation within the field.

Latest Patents

One of his latest patents is an innovative LED light incorporated into a multifunctional mounting assembly for wrap-around eyeglass frames. This optical mounting assembly is uniquely designed for use with wrap-around type eyeglass frames, utilizing a single sheet of curved lens material that forms both right and left lenses. These lenses can support through-the-lens (TTL) oculars or loupes. The assembly can attach to existing frames or be included with newly designed frames. It features a bridge portion where lens material is sandwiched between front and rear components, complemented by a nose pad component made from bendable wire arms, ensuring comfort through cushioning material. The front component may accommodate an illuminator or a video camera, while the rear component is adaptable for an optical accessory, such as a light-blocking or light-admitting filter.

Career Highlights

Throughout his career, Chang has contributed to notable companies including General Scientific Corporation and Kaiser Optical Systems Inc. These positions have allowed him to push the boundaries of optical innovation and further his research and development endeavors.

Collaborations

Chang's work has often involved collaboration with esteemed colleagues such as Thomas Allen Cummings and David Nowak. Their combined expertise and innovative spirit have fueled advancements in the optical field, leading to several groundbreaking inventions.

Conclusion

Byung Jin Chang is a brilliant inventor shaping the future of optical technologies through his innovative designs and patents. His dedication to improving eyeglass frames and optical accessories positions him as a key player in his field, paving the way for future advancements and offering practical solutions through his groundbreaking work.

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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