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For the Inventor, By the Inventor

Bridgetown, Barbados

Magnequench Limited


USPTO Granted Patents = 10

% Expired Patents = 30.0



Trademarks = 5

Forward Citations = 42

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18 inventors (with patents filed for the assignee):

goldMedal Viswanathan Panchanathan (3 out of 27 patents)

silverMedal Peter Christopher Guschl (2 out of 2 patents)

bronzeMedal Zhongmin Chen (2 out of 2 patents)

4.  Benjamin R Smith (2 out of 2 patents)

5.  Bao-Min Ma (2 out of 2 patents)

6.  James W Herchenroeder (2 out of 2 patents)

7.  David Johnston Miller (2 out of 2 patents)

8.  Barry Hal Rabin (1 out of 17 patents)

9.  Zhao Wei (1 out of 1 patent)

10.  David Miller (1 out of 1 patent)

11.  Han Zhisan (1 out of 1 patent)

12.  Kevin Young (1 out of 4 patents)

13.  Charles Howard Sellers (1 out of 2 patents)

14.  Peter Campbell (1 out of 1 patent)

15.  Joseph James Worden (1 out of 1 patent)


10 patents:

1. 9028705 - Capsule (2015-05-12),
2. 8313801 - Coating formulation and application of organic passivation layer onto iron-based rare earth powders (2012-11-20),
3. 7390579 - Coating formulation and application of organic passivation layer onto iron-based rare earth powders (2008-06-24),
4. 7144463 - Highly quenchable Fe-based rare earth materials for ferrite replacement (2006-12-05),
5. 6979409 - Highly quenchable Fe-based rare earth materials for ferrite replacement (2005-12-27),
6. 6791225 - Flywheel magneto generator (2004-09-14),
7. 6703727 - Notched magnet for use in voice coil actuators (2004-03-09),
8. 6555018 - Bonded magnets made with atomized permanent magnetic powders (2003-04-29),
9. 6478890 - Isotropic rare earth material of high intrinsic induction (2002-11-12),
10. 6277211 - Cu additions to Nd-Fe-B alloys to reduce oxygen content in the ingot and rapidly solidified ribbon (2001-08-21),
Company Overview
Magnequench Limited specializes in the development and manufacturing of advanced magnetic materials, particularly focusing on rare earth magnets. The company is recognized for its expertise in producing high-performance magnetic solutions that cater to various industries, including automotive, electronics, and renewable energy. With a commitment to innovation, Magnequench leverages cutting-edge technology to enhance the efficiency and effectiveness of its products, contributing to advancements in magnetic applications globally.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

10 Patents

#8 in Bridgetown

#27 in Barbados

#56,047 in the World

Bridgetown, BB
Bridgetown, Barbados

Magnequench Limited

Forward Citations = 42

18 inventors:

goldMedal Viswanathan Panchanathan (3 out of 27 patents)

silverMedal Peter Christopher Guschl (2 out of 2 patents)

bronzeMedal Zhongmin Chen (2 out of 2 patents)

4.  Benjamin R Smith (2 out of 2 patents)

5.  Bao-Min Ma (2 out of 2 patents)

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

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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