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For the Inventor, By the Inventor

Troy, MI, United States of America

Energy Conversion Devices, Inc.


USPTO Granted Patents = 429

% Expired Patents = 6.8



Forward Citations = 24,218

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236 inventors (with patents filed for the assignee):

goldMedal Stanford R Ovshinsky (171 out of 324 patents)

silverMedal Rosa T Young (37 out of 57 patents)

bronzeMedal Vincent D Cannella (37 out of 50 patents)

4.  Prem Nath (37 out of 61 patents)

5.  Masatsugu Izu (33 out of 43 patents)

6.  Stephen J Hudgens (29 out of 70 patents)

7.  Krishna Sapru (27 out of 27 patents)

8.  David A Strand (25 out of 29 patents)

9.  Joachim Doehler (25 out of 27 patents)

10.  Zvi Yaniv (23 out of 43 patents)

11.  Wolodymyr Czubatyj (19 out of 55 patents)

12.  Robert R Johnson (19 out of 21 patents)

13.  Srinivasan Venkatesan (15 out of 57 patents)

14.  Michael A Fetcenko (12 out of 71 patents)

15.  David V Tsu (11 out of 12 patents)


Core Competencies:
Hydrogen Storage Alloys
Fuel Cell Systems
Optical Data Storage
Chalcogenide Devices
Photonic Integrated Circuits
Thermal Response Heating
Quantum Limit Catalysts
Phase Change Memory
Analog Neurons
Gas Gate Technology
Hydrogen Infrastructure
Plasmon Lenses

429 patents:

1. 7491448 - Reticulated foam-like structure formed of nano-scale particulate (2009-02-17),
2. 7447404 - Photonic integrated circuit (2008-11-04),
3. 7388825 - Optical data storage and retrieval systems utilizing dual energy sources (2008-06-17),
4. 7388178 - Rapid thermal response induction heating system for platen embossing (2008-06-17),
5. 7292521 - Optical data storage and systems utilizing plasmon lenses (2007-11-06),
6. 7250386 - Quantum limit catalysts and hydrogen storage materials (2007-07-31),
7. 7227221 - Multiple bit chalcogenide storage device (2007-06-05),
8. 7227170 - Multiple bit chalcogenide storage device (2007-06-05),
9. 7186999 - Error reduction circuit for chalcogenide devices (2007-03-06),
10. 7186998 - Multi-terminal device having logic functional (2007-03-06),
11. 7144241 - Method and apparatus for forming microstructures on polymeric substrates (2006-12-05),
12. 7113474 - Increased data storage in optical data storage and retrieval systems using blue lasers and/or plasmon lenses (2006-09-26),
13. 7085155 - Secured phase-change devices (2006-08-01),
14. 7065274 - Optical coupling device (2006-06-20),
15. 7054524 - Asymmetric photonic crystal waveguide element having symmetric mode fields (2006-05-30),
Company Overview
Energy Conversion Devices, Inc., based in Troy, Michigan, specializes in advanced hydrogen storage technologies. The company focuses on the development of hydrogen storage alloys and fuel cell systems, contributing to the growing field of clean energy solutions. Their expertise extends to optical data storage, chalcogenide devices, and photonic integrated circuits, showcasing a commitment to innovation in energy conversion and storage. Additionally, they explore thermal response heating, quantum limit catalysts, and phase change memory, positioning themselves at the forefront of energy technology advancements.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Energy Conversion Devices, Inc. USPTO Patent Assignee Logo
429 Patents

#3 in Troy, MI

#55 in Michigan

#1,104 in US

#2,205 in the World

Troy, MI (US)
Troy, MI, United States of America

Energy Conversion Devices, Inc.

Forward Citations = 24,218

236 inventors:

goldMedal Stanford R Ovshinsky (171 out of 324 patents)

silverMedal Rosa T Young (37 out of 57 patents)

bronzeMedal Vincent D Cannella (37 out of 50 patents)

4.  Prem Nath (37 out of 61 patents)

5.  Masatsugu Izu (33 out of 43 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Energy Conversion Devices, Inc.. Retrieved from https://idiyas.com/company/energy-conversion-devices

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

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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