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For the Inventor, By the Inventor

Goldens Bridge, NY, United States of America

Leroy L Chang

This inventor holds 18 USPTO granted patents, plus 1 CIPO patent, primarily in Semiconductor Devices. Top assignees: International Business Machines Corporation, US Government as Represented by the Secretary of the Army, USA as Represented by Secretary of the Navy. Active years: 1978-1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Leroy L Chang. Retrieved from https://idiyas.com/inventor/leroy-l-chang

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

Calculating rank
USPTO Granted Patents = 18

% Patents Active = 100.0


Average Co-Inventor Count = 2.9

ph-index = 11

Forward Citations = 418(Granted Patents)


Location History:

  • Mohegan Lake, NY (US) (1978 - 1979)
  • Mohegan, NY (US) (1979 - 1980)
  • Lake Mohegan, NY (US) (1980 - 1981)
  • Goldens Bridge, NY (US) (1984 - 1995)

Company Filing History:

goldMedal12 out of 166,425 
 
International Business Machines Corporation
 patents
silverMedal5 out of 8,753 
 
US Government as Represented by the Secretary of the Army
 patents
bronzeMedal1 out of 16,286 
 
USA as Represented by Secretary of the Navy
 patents

Years Active: 1978-1995

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Areas of Expertise:
Hetero-superlattice
PN Junctions
Magnetic Materials
Field Effect Transistor
Quantum Pipeline
Semiconductor Device
Photomultiplier
MBE Growth Technique
Heterojunction
Infrared Optical Devices
Strained Lattice
Memory Devices
18 patents (USPTO):Explore Patents
1. 5416337 - Hetero-superlattice PN junctions (1995-05-16),
2. 5296048 - Class of magnetic materials for solid state devices (1994-03-22),
3. 5294287 - Class of magnetic materials for solid state devices (1994-03-15),
4. 4743951 - Field effect transistor (1988-05-10),
5. 4733282 - One-dimensional quantum pipeline type carrier path semiconductor devices (1988-03-22),
6. 4665415 - Semiconductor device with hole conduction via strained lattice (1987-05-12),
7. 4568959 - Photomultiplier (1986-02-04),
8. 4558336 - MBE Growth technique for matching superlattices grown on GaAs substrates (1985-12-10),
9. 4538165 - FET With heterojunction induced channel (1985-08-27),
10. 4517047 - MBE growth technique for matching superlattices grown on GaAs substrates (1985-05-14),
11. 4469977 - Superlattice ultrasonic wave generator (1984-09-04),
12. 4250515 - Heterojunction superlattice with potential well depth greater than half (1981-02-10),
13. 4239584 - Molecular-beam epitaxy system and method including hydrogen treatment (1980-12-16),
14. 4208667 - Controlled absorption in heterojunction structures (1980-06-17),
15. 4205331 - Infrared optical devices of layered structure (1980-05-27),

Title: The Innovative Journey of Leroy L Chang

Introduction: Leroy L Chang, a talented inventor hailing from Goldens Bridge, NY (US), has made significant contributions to the world of innovations with his creative mind and dedication to progress.

Latest Patents: Leroy L Chang's latest patents showcase his commitment to pushing boundaries in various industries, including technology, healthcare, and sustainability. His recent inventions have been recognized for their ingenuity and practicality.

Career Highlights: Throughout his illustrious career, Leroy L Chang has been at the forefront of groundbreaking inventions that have revolutionized the way we live and work. His passion for innovation has led to the development of cutting-edge solutions that address complex challenges.

Collaborations: Leroy L Chang has collaborated with leading experts, researchers, and companies to bring his ideas to life. His ability to work effectively in multidisciplinary teams has resulted in successful partnerships that have propelled his inventions to new heights.

Conclusion: Leroy L Chang's remarkable journey as an inventor exemplifies the power of creativity, perseverance, and collaboration in driving meaningful change. His contributions to the field of innovations continue to inspire future generations to think outside the box and pursue their inventive dreams.

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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