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For the Inventor, By the Inventor

North Yorkshire, United Kingdom

Switched Reluctance Drives Limited


USPTO Granted Patents = 119


Trademarks = 1

Forward Citations = 1,680

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49 inventors (with patents filed for the assignee):

goldMedal Michael James Turner (18 out of 21 patents)

silverMedal Steven Paul Randall (13 out of 23 patents)

bronzeMedal Norman Neilson Fulton (10 out of 11 patents)

4.  Michael Leo McClelland (10 out of 13 patents)

5.  David Mark Sugden (10 out of 10 patents)

6.  Peter Richard Mayes (9 out of 10 patents)

7.  Paul Donald Webster (7 out of 7 patents)

8.  Rex Mountford Davis (7 out of 13 patents)

9.  John M Stephenson (7 out of 7 patents)

10.  Michael Paul Tankard (6 out of 8 patents)

11.  Geoffrey Thomas Brown (6 out of 6 patents)

12.  Howard James Slater (5 out of 5 patents)

13.  William Frederick Ray (5 out of 14 patents)

14.  Charles Richard Elliott (4 out of 6 patents)

15.  Peter Mark Moriarty (4 out of 4 patents)


Core Competencies:
Switched Reluctance Machines
Electrical Machine Control
Rotor Position Detection
Brushless Electrical Machines
Variable Reluctance Generators
Electro-Mechanical Transmission Systems
Current Chopping Techniques
Flux Feedback Control
Power Train Controllers
Soft-Starting Mechanisms
Position Encoding Systems
Cooling Systems for Electrical Machines

119 patents:

1. 7906931 - Control of a switched reluctance machine (2011-03-15),
2. 7888896 - Operating electrical machines from a DC link (2011-02-15),
3. 7880415 - Control of a brushless electrical machine (2011-02-01),
4. 7804269 - Control of an electrical machine (2010-09-28),
5. 7737646 - Operating electrical machines from a DC link (2010-06-15),
6. 7640128 - Rotor position detection in an electrical machine (2009-12-29),
7. 7560845 - Rotor for a switched reluctance machine (2009-07-14),
8. 7388345 - Rotor position detection in an electrical machine (2008-06-17),
9. 7370508 - Rotor position detection in an electrical machine (2008-05-13),
10. 7288915 - Rotor position detection of an electrical machine (2007-10-30),
11. 7268516 - Circuit for use with switched reluctance machines (2007-09-11),
12. 7233873 - Rotor position detection in an electrical machine (2007-06-19),
13. 7208906 - Excitation of switched reluctance motors (2007-04-24),
14. 7205694 - Control of a switched reluctance drive (2007-04-17),
15. 7176650 - Operation of an electrical machine (2007-02-13),
Switched Reluctance Drives Limited is a leading provider of high-performance switched reluctance drives for various industries. With our innovative solutions, we help businesses achieve improved energy efficiency and performance in their operations. Our team of experts works closely with clients to understand their specific requirements and deliver customized drive solutions that are reliable, compact, and cost-effective. Visit our website to learn more about our industry-leading switched reluctance drives.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

119 Patents

#1 in North Yorkshire

#140 in United Kingdom

#6,493 in the World

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North Yorkshire, United Kingdom

Switched Reluctance Drives Limited

Forward Citations = 1,680

49 inventors:

goldMedal Michael James Turner (18 out of 21 patents)

silverMedal Steven Paul Randall (13 out of 23 patents)

bronzeMedal Norman Neilson Fulton (10 out of 11 patents)

4.  Michael Leo McClelland (10 out of 13 patents)

5.  David Mark Sugden (10 out of 10 patents)

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