% Expired Patents = 33.3

EPO Patents = 6

Trademarks = 3

Forward Citations = 9

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11 inventors (with patents filed for the assignee):

Philip John Allen (2 out of 5 patents)

Andrew John Gilbert (2 out of 5 patents)

Ahmad Fashihul Lisan (1 out of 5 patents)

4. Sudirman Widiarto (1 out of 2 patents)

5. Clive John Southernwood (1 out of 1 patent)

6. Shane Alastair Day (1 out of 1 patent)

7. Lee Philip O'donovan (1 out of 1 patent)

8. Roy Alingalan (2 patents)

9. Pakorn Aewskulrat (1 patent)

10. Paul Francis Clarke (10 patents)

11. Patrick Meredith (1 patent)

12. Patrick Meredith (0 patent)

13. Arief Rahman (0 patent)

14. Anthony Denis Mccormack (0 patent)

15. Harismal Natanegara (0 patent)

3 patents: Sort by Forward Citations

#36 in Nottingham

#4,892 in United Kingdom

Filtrona Plc

Forward Citations = 9

11 inventors:

Philip John Allen (2 out of 5 patents)

Andrew John Gilbert (2 out of 5 patents)

Ahmad Fashihul Lisan (1 out of 5 patents)

4. Sudirman Widiarto (1 out of 2 patents)

5. Clive John Southernwood (1 out of 1 patent)

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

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]

6 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]