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For the Inventor, By the Inventor

Troy, MI, United States of America

Man-Feng Chang

This inventor holds 29 USPTO granted patents and 1 EPO patent, primarily in Hybrid Powertrain Technology. Top assignee: Gm Global Technolgoy Operations, Inc.. Active years: 1990-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Man-Feng Chang. Retrieved from https://idiyas.com/inventor/man-feng-chang

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

USPTO Granted Patents = 29

% Patents Active = 44.8


Average Co-Inventor Count = 3.5

ph-index = 15

Forward Citations = 620(Granted Patents)


Company Filing History:

goldMedal29 out of 31,896 
 
Gm Global Technolgoy Operations, Inc.
 patents

Years Active: 1990-2014

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Areas of Expertise:
Hybrid Drive Powertrain
Fuel Injection Control
Internal Combustion Engine
Combustion Noise Control
Energy Management
Homogeneous Charge Compression Ignition
Vehicle Control
Stochastic Information
Torque Management
Engine Speed Prediction
Transitional Control
Aftertreatment Devices
29 patents (USPTO):Explore Patents
1. 8630760 - Method for managing transitions in internal combustion engines with a hybrid drive powertrain (2014-01-14),
2. 8392091 - Using GPS/map/traffic info to control performance of aftertreatment (AT) devices (2013-03-05),
3. 8335634 - Transient combustion noise control in a hybrid powertrain including an HCCI engine (2012-12-18),
4. 8290637 - Vehicle control using stochastic information (2012-10-16),
5. 8276555 - Method for managing transitions in internal combustion engines with a hybrid drive powertrain (2012-10-02),
6. 8229648 - Method and apparatus for controlling fuel injection in a homogeneous charge compression ignition engine (2012-07-24),
7. 8224559 - Method and apparatus to monitor a mass airflow metering device in an internal combustion engine (2012-07-17),
8. 8214122 - Energy economy mode using preview information (2012-07-03),
9. 8171720 - System and methods to detect non-urea reductant filled in a urea tank (2012-05-08),
10. 8095290 - Method to control vehicular powertrain by monitoring map preview information (2012-01-10),
11. 7848872 - Method and apparatus for monitoring recirculated exhaust gas in an internal combustion engine (2010-12-07),
12. 7831369 - Method and apparatus for vehicle and engine operation (2010-11-09),
13. 7798126 - Method for controlling cylinder charge in a homogeneous charge compression ignition engine (2010-09-21),
14. 7689344 - Method and apparatus for controlling transitions in an engine having multi-step valve lift (2010-03-30),
15. 7650211 - Method and apparatus to monitor ambient sensing devices (2010-01-19),

Title: The Innovative Journey of Man-Feng Chang

Introduction: Man-Feng Chang, a talented inventor based in Troy, MI, has made significant contributions to the field of technology through his groundbreaking innovations.

Latest Patents: Man-Feng Chang holds several patents in the areas of automotive engineering and renewable energy technologies, showcasing his diverse range of expertise and creativity.

Career Highlights: With a career spanning over two decades, Man-Feng Chang has worked for leading tech companies, where he has spearheaded numerous projects that have revolutionized the industry.

Collaborations: Throughout his career, Man-Feng Chang has collaborated with top researchers, engineers, and designers, fostering a culture of innovation and excellence in all his endeavors.

Conclusion: Man-Feng Chang's passion for pushing the boundaries of technology and his relentless pursuit of innovation continue to inspire the next generation of inventors and entrepreneurs.

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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