% Expired Patents = 25.0

CIPO Patents = 8

Trademarks = 3

Forward Citations = 53

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8 inventors (with patents filed for the assignee):

Bernard Mark Heron (4 out of 11 patents)

Steven Michael Partington (4 out of 4 patents)

John David Hepworth (4 out of 4 patents)

4. Christopher David Gabbutt (4 out of 4 patents)

5. Stephen Nigel Corns (4 out of 4 patents)

6. David A Clarke (4 out of 4 patents)

7. Bergen Fletcher (7 patents)

8. Alexander Kornilovsky (23 patents)

9. Robert James Lowles (68 patents)

10. Jacek S Idzik (30 patents)

11. Marc A Drader (74 patents)

12. Jason Griffin (0 patent)

13. James Robinson (0 patent)

14. James Robinson (0 patent)

15. Robert Lowles (0 patent)

4 patents: Sort by Forward Citations

1. 6387512 - Grey coloring photochromic fused pyrans (2002-05-14),

2. 6303673 - Photochromic compounds (2001-10-16),

3. 6294112 - Red coloring hyperchromic 3H-naphtho[2,1-B]pyrans (2001-09-25),

4. 6248264 - Neutral coloring photochromic 2H-naphtho[1,2-b] pyrans and heterocyclic pyrans (2001-06-19),

James Robinson Limited is a leading provider of construction services in the UK. With over 25 years of experience, we offer a wide range of services including building, renovations, and project management. Our dedicated team of professionals ensures high-quality work and client satisfaction on every project.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 22 2026

4 Patents

#8 in Huddersfield

#3,860 in United Kingdom

Huddersfield, United Kingdom

James Robinson Limited