% Expired Patents = 66.7

EPO Patents = 9

Forward Citations = 31

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6 inventors (with patents filed for the assignee):

Edward Stephen Matthews (2 out of 2 patents)

Xiaoming Duan (2 out of 2 patents)

Richard Llewellyn Powell (2 out of 2 patents)

4. Michael Harrison (1 out of 1 patent)

5. John Collins (1 out of 1 patent)

6. Andrew Rowley (1 out of 1 patent)

7. Stephen John Russell (9 patents)

8. Charles Rea (1 patent)

9. Robert Stuart Ellis Bell (1 patent)

10. Norman Maloney (1 patent)

11. Ba Duong Phan (2 patents)

12. Robert Bell (0 patent)

13. Luke O'brien (0 patent)

14. Robert Melson Perkin (0 patent)

15. Darren Kell (0 patent)

3 patents: Sort by Forward Citations

1. 7939141 - Method of production of fluorinated carbon nanostructures (2011-05-10),

2. 7742689 - Liquid heating apparatus and method (2010-06-22),

3. 7700192 - [object Object] (2010-04-20),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#5 in Chester

#4,894 in United Kingdom

Chester, United Kingdom

C-Tech Innovation Limited

Forward Citations = 31

6 inventors:

Edward Stephen Matthews (2 out of 2 patents)

Xiaoming Duan (2 out of 2 patents)

Richard Llewellyn Powell (2 out of 2 patents)

4. Michael Harrison (1 out of 1 patent)

5. John Collins (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: C-Tech Innovation Limited. Retrieved from https://idiyas.com/company/c-tech-innovation

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]

9 patents (EPO):

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]