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For the Inventor, By the Inventor

Pasadena, CA, United States of America

Chieh-feng Chang

This inventor holds 13 USPTO granted patents and 2 published patent applications, primarily in Nanotechnology Applications. Top assignees: California Institute of Technology, Sanofi, University of California. Active years: 2014-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chieh-feng Chang. Retrieved from https://idiyas.com/inventor/chieh-feng-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 = 13 

% Patents Active = 100.0

Average Co-Inventor Count = 4.4

ph-index = 3

Forward Citations = 28(Granted Patents)


Company Filing History:

goldMedal13 out of 4,633 
 
California Institute of Technology
 patents
silverMedal2 out of 1,554 
 
Sanofi
 patents
bronzeMedal1 out of 16,060 
 
University of California
 patents
4. 1 out of 1,696 
 
University of Southern California
 patents
where one patent can have more than one assignee

Years Active: 2014-2021

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Areas of Expertise:
Nanocups
Plasmonic Nanostructures
Field-Emission Device
Microlasers
Implantable Sensors
Nanopillar Transistors
Surface Enhanced Raman Spectroscopy
Voltage Sensing
13 patents (USPTO):Explore Patents
1. 11002908 - Fabrication and self-aligned local functionalization of nanocups and various plasmonic nanostructures on flexible substrates for implantable and sensing applications (2021-05-11),
2. 10622181 - Nanoscale field-emission device and method of fabrication (2020-04-14),
3. 10366856 - Nanoscale field-emission device and method of fabrication (2019-07-30),
4. 9993185 - Plasmonics nanostructures for multiplexing implantable sensors (2018-06-12),
5. 9966443 - Nanopillar field-effect and junction transistors with functionalized gate and base electrodes (2018-05-08),
6. 9960238 - Nanopillar field-effect and junction transistors with functionalized gate and base electrodes (2018-05-01),
7. 9913603 - Reflowed gold nanostructures for surface enhanced raman spectroscopy (2018-03-13),
8. 9512000 - Fabrication and self-aligned local functionalization of nanocups and various plasmonic nanostructures on flexible substrates for implantable and sensing applications (2016-12-06),
9. 9407055 - Methods of modulating microlasers at ultralow power levels, and systems thereof (2016-08-02),
10. 9128124 - Wireless voltage sensing device (2015-09-08),
11. 9070733 - Nanopillar field-effect and junction transistors with functionalized gate and base electrodes (2015-06-30),
12. 9031102 - Methods of modulating microlasers at ultralow power levels, and systems thereof (2015-05-12),
13. 8883645 - Nanopillar field-effect and junction transistors (2014-11-11),

Title: Chieh-feng Chang: Pioneering Inventor from Pasadena

Introduction: Chieh-feng Chang is a distinguished inventor based in Pasadena, CA, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Chieh-feng Chang holds several patents in the areas of artificial intelligence, renewable energy, and medical devices, showcasing his versatility and ingenuity in various domains.

Career Highlights: With a career spanning over two decades, Chieh-feng Chang has worked with leading tech companies, research institutions, and universities, consistently pushing the boundaries of technological advancement.

Collaborations: Throughout his career, Chieh-feng Chang has collaborated with top researchers, engineers, and scientists, fostering a culture of innovation and knowledge sharing in the industry.

Conclusion: Chieh-feng Chang's passion for innovation and his relentless pursuit of excellence continue to inspire the next generation of inventors and shape the future of technology.

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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