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For the Inventor, By the Inventor

Hampshire, United Kingdom

Lewmar Limited

Calculating rank
USPTO Granted Patents = 19

% Expired Patents = 21.1



Trademarks = 3

Forward Citations = 65

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19 inventors (with patents filed for the assignee):

goldMedal Nigel Christopher Smith (4 out of 4 patents)

silverMedal Philip David Roberts (3 out of 3 patents)

bronzeMedal Nicholas Charles Henly (3 out of 5 patents)

4.  Sean Daniel Wilson (2 out of 2 patents)

5.  Robert Fields (2 out of 5 patents)

6.  Oliver Peter Gregory Falconer (2 out of 2 patents)

7.  Ian Johns (2 out of 2 patents)

8.  David Frank Bailes (1 out of 1 patent)

9.  Geraint Pugh (1 out of 1 patent)

10.  Andrew Palmer (1 out of 1 patent)

11.  Oliver Falconer (1 out of 1 patent)

12.  Andrew Michael Matthews (1 out of 1 patent)

13.  Tony Cobden (1 out of 1 patent)

14.  Christopher Lesley Treagust (1 out of 1 patent)

15.  Julian Renton (1 out of 1 patent)


19 patents:

1. 10975892 - Hydraulic reservoir with a vortex for deaeration of the hydraulic oil (2021-04-13),
2. 10894580 - Sliding roof panel assembly and method for its operation (2021-01-19),
3. 10766586 - Retractable thruster and drive shaft for retractable thruster (2020-09-08),
4. 10450173 - Gypsy for windlass and method for its manufacture (2019-10-22),
5. 10137967 - Windlass assembly (2018-11-27),
6. 10081520 - Line hauling device (2018-09-25),
7. 10005532 - Retractable thruster (2018-06-26),
8. 9061870 - Winch (2015-06-23),
9. 8820720 - Winch (2014-09-02),
10. 7226042 - Winch and winch drum (2007-06-05),
11. 7207288 - Fixing assemblies and methods (2007-04-24),
12. D534788 - Windlass winch capstan (2007-01-09),
13. D523208 - Windlass (2006-06-13),
14. 7036446 - Marine steering assembly (2006-05-02),
15. 6974125 - Pulley block (2005-12-13),
Company Overview
Lewmar Limited is a prominent manufacturer specializing in marine hardware and accessories, catering to the needs of sailors and boaters worldwide. The company is renowned for its innovative solutions in anchoring, winches, and steering systems, enhancing the performance and safety of marine vessels. With a strong focus on quality and engineering excellence, Lewmar serves a global market, contributing to advancements in marine technology and design, ensuring a superior experience for both recreational and professional maritime activities.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

19 Patents

#10 in Hampshire

#928 in United Kingdom

#32,705 in the World

Hampshire, GB
Hampshire, United Kingdom

Lewmar Limited

Forward Citations = 65

19 inventors:

goldMedal Nigel Christopher Smith (4 out of 4 patents)

silverMedal Philip David Roberts (3 out of 3 patents)

bronzeMedal Nicholas Charles Henly (3 out of 5 patents)

4.  Sean Daniel Wilson (2 out of 2 patents)

5.  Robert Fields (2 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Lewmar Limited. Retrieved from https://idiyas.com/company/lewmar

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]
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