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Tortola, Virgin Islands, British

Psj International Ltd.

USPTO Granted Patents = 16

% Expired Patents = 6.3

Forward Citations = 9

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14 inventors (with patents filed for the assignee):

Ruey-Beei Wu (13 out of 31 patents)

Alexander I Chi Lai (5 out of 5 patents)

Chung-Yuan Chen (3 out of 3 patents)

4. Ching-Fuh Lin (2 out of 40 patents)

5. Shau-Gang Mao (2 out of 10 patents)

6. Yu-Er Chen (2 out of 2 patents)

7. Hao-Wei Chan (2 out of 2 patents)

8. Yu-Chih Chen (1 out of 1 patent)

9. Meng-Lin Yu (1 out of 2 patents)

10. Chao-Hsiang Li (1 out of 1 patent)

11. Shih-Yi Huang (1 out of 1 patent)

12. Tzu-Yi Yang (1 out of 1 patent)

13. Ju-Chin Chao (1 out of 1 patent)

14. Yu-Shu Liu (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 12387441 - Immersive exhibition image arrangement system and immersive exhibition image arrangement preview method (2025-08-12),

2. 12352880 - Spatial positioning method (2025-07-08),

3. 12235374 - Ranging-type positioning system and ranging-type positioning method based on crowdsourced calibration (2025-02-25),

4. 12214877 - Autonomous drone (2025-02-04),

5. 11924705 - Antenna device, positioning system and positioning method (2024-03-05),

6. 11838828 - Ultra-wideband assisted precise positioning system and ultra-wideband assisted precise positioning method (2023-12-05),

7. 11762396 - Positioning system and positioning method based on WI-FI fingerprints (2023-09-19),

8. 11714426 - Positioning system and method based on neural network model (2023-08-01),

9. 11644524 - Ultra-wideband localization method, device, and system (2023-05-09),

10. 11608171 - Large drone (2023-03-21),

11. 11438886 - System for establishing positioning map data and method for the same (2022-09-06),

12. 11002824 - Ultra-wideband assisted precise positioning system and method (2021-05-11),

13. 10974828 - Small solar-powered unmanned aircraft (2021-04-13),

14. 10939406 - Ultra-wideband assisted precise positioning method (2021-03-02),

15. 10763580 - Real-time data transmission system (2020-09-01),

Psj International Ltd. is a company based in Tortola, VG, specializing in the development and manufacturing of innovative solutions across various sectors. The organization focuses on advanced technologies and services that cater to diverse industries, including engineering and manufacturing. With a commitment to quality and innovation, Psj International Ltd. aims to enhance operational efficiencies and deliver cutting-edge products that meet the evolving needs of its clients in a competitive global market.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

16 Patents

#38 in Tortola

#47 in Virgin Islands, British

#37,766 in the World

Tortola, Virgin Islands, British

Psj International Ltd.

Forward Citations = 9

14 inventors:

Ruey-Beei Wu (13 out of 31 patents)

Alexander I Chi Lai (5 out of 5 patents)

Chung-Yuan Chen (3 out of 3 patents)

4. Ching-Fuh Lin (2 out of 40 patents)

5. Shau-Gang Mao (2 out of 10 patents)

Please report any incorrect information to [email protected]

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