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For the Inventor, By the Inventor

Hong Kong, China

Gp Batteries International Limited

USPTO Granted Patents = 10

% Expired Patents = 20.0


Trademarks = 2

Forward Citations = 222

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25 inventors (with patents filed for the assignee):

goldMedal Leland M Gillman (3 out of 6 patents)

silverMedal Hing Po Tsang (2 out of 2 patents)

bronzeMedal Ramesh C Bhardwaj (2 out of 6 patents)

4.  Xian-Wen Ren (1 out of 1 patent)

5.  Yu-Sum Chow (1 out of 1 patent)

6.  Wei-Gong Zheng (1 out of 1 patent)

7.  Jia-Miao Liu (1 out of 1 patent)

8.  Wei-Chen Hu (1 out of 1 patent)

9.  Kwok-Fung Kan (1 out of 1 patent)

10.  Paul Brantner (1 out of 19 patents)

11.  Sek Yin Sham (1 out of 1 patent)

12.  Kin Pun Wong (1 out of 1 patent)

13.  Sung On Andrew Ng (1 out of 1 patent)

14.  Che Wee Yeo (1 out of 1 patent)

15.  Ping Hung Tang (1 out of 1 patent)


10 patents:

1. 11482762 - Battery (2022-10-25),
2. 10978695 - Anode active material and anode for lithium-ion battery, method for preparing the anode active material, and lithium-ion battery (2021-04-13),
3. 10734625 - Battery including safety vent assembly (2020-08-04),
4. 7888911 - Method and system for determining the SOC of a rechargeable battery (2011-02-15),
5. D501824 - Battery charger (2005-02-15),
6. 6833216 - Method of manufacturing a sulfated paste for use in a lead acid cell (2004-12-21),
7. 6582482 - Tin-clad substrates for use as current collectors, batteries comprised thereof and methods for preparing same (2003-06-24),
8. 6579647 - Tin-clad substrates for use as current collectors, batteries comprised thereof and methods for preparing same (2003-06-17),
9. 6545445 - Multiple battery system and method (2003-04-08),
10. D442544 - Battery charger (2001-05-23),
Company Overview
Gp Batteries International Limited is a prominent manufacturer and developer of battery solutions, specializing in a wide range of battery technologies including alkaline, rechargeable, and lithium batteries. The company is recognized for its commitment to innovation and sustainability, focusing on enhancing energy efficiency and performance across various applications. Headquartered in Hong Kong, Gp Batteries serves global markets, providing reliable power solutions for consumer electronics, industrial applications, and renewable energy systems.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

10 Patents

#319 in Hong Kong

#2,817 in China

#56,092 in the World

Hong Kong, CN
Hong Kong, China

Gp Batteries International Limited

Forward Citations = 222

25 inventors:

goldMedal Leland M Gillman (3 out of 6 patents)

silverMedal Hing Po Tsang (2 out of 2 patents)

bronzeMedal Ramesh C Bhardwaj (2 out of 6 patents)

4.  Xian-Wen Ren (1 out of 1 patent)

5.  Yu-Sum Chow (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Gp Batteries International Limited. Retrieved from https://idiyas.com/company/gp-batteries-international

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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