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USPTO Data Jan 1 1976 - Dec 9 2025
11 Patents
#6 in Leicester
#1,552 in United Kingdom
#50,159 in the World
Permavoid Limited
Forward Citations = 91
25 inventors:
Permavoid Limited
CIPO Patents = 20
EPO Patents = 10
Trademarks = 1
Forward Citations = 91
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25 inventors (with patents filed for the assignee):
Andrew Bryan Shuttleworth (10 out of 13 patents)
Paul David Culleton (9 out of 13 patents)
Carolus Hermanus Van Raam (8 out of 10 patents)
4. Carolu Hermanus Van Raam (1 out of 1 patent)
5. David Saxby (1 out of 1 patent)
6. William Pomfret (1 out of 1 patent)
7. Richard Granville Marshall (1 out of 1 patent)
8. Timothy Robert Lowe (2 patents)
9. Stuart Ramella (0 patent)
10. Ben Daniels (0 patent)
11. Tim Puehmeier (0 patent)
12. Andrew Shuttleworth (0 patent)
13. David Saxby (0 patent)
14. Andrew Brian Linga Longa Shuttleworth (0 patent)
15. Tim Puehmeier (0 patent)
11 patents:
PERMAVOID LIMITED is a leading provider of sustainable infrastructure solutions. We specialize in the design, manufacture, and installation of Permavoid systems, which offer innovative stormwater management and sustainable urban drainage solutions. Our products are designed to reduce the environmental impact of urban development by effectively managing surface water runoff. With a focus on sustainability, quality, and reliability, PERMAVOID LIMITED is committed to creating greener and more resilient urban environments.
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20 patents (CIPO):
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10 patents (EPO):
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