% Expired Patents = 100.0

Forward Citations = 334

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12 inventors (with patents filed for the assignee):

Michael Willboughby Essex Coney (3 out of 3 patents)

Roger Richards (2 out of 2 patents)

Andrew Male (1 out of 12 patents)

4. David Frankland West (1 out of 1 patent)

5. Brian Charles Porter (1 out of 1 patent)

6. Laurent Roger Spelliers (1 out of 1 patent)

7. Alexander Bruce Wilson (1 out of 1 patent)

8. Michael Willoughby Essex Coney (1 out of 1 patent)

9. David John Gooch (1 out of 1 patent)

10. Birendra Nath (1 out of 1 patent)

11. Andrew Powell (1 out of 1 patent)

12. Hicham Salah Abdallah (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 6883775 - Passive valve assembly (2005-04-26),

2. 6874453 - Two stroke internal combustion engine (2005-04-05),

3. 6840309 - Heat exchanger (2005-01-11),

4. 6817185 - Engine with combustion and expansion of the combustion gases within the combustor (2004-11-16),

Company Overview

Innogy Plc is a leading European company for renewable energy solutions. With a focus on sustainable and innovative technologies, Innogy is at the forefront of the clean energy transition. Through its subsidiaries and partnerships, Innogy is driving the development of wind, solar, and hydro power projects across Europe, delivering reliable and efficient energy solutions for businesses and consumers.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#13 in Swindon

#3,863 in United Kingdom

Swindon, United Kingdom

Innogy Plc

Forward Citations = 334

12 inventors:

Michael Willboughby Essex Coney (3 out of 3 patents)

Roger Richards (2 out of 2 patents)

Andrew Male (1 out of 12 patents)

4. David Frankland West (1 out of 1 patent)

5. Brian Charles Porter (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Innogy Plc. Retrieved from https://idiyas.com/company/innogy

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]