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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 leading provider of global logistics and supply chain solutions. With a strong presence in key markets worldwide, we offer a wide range of services including freight forwarding, warehousing, distribution, and customs brokerage. Our dedicated team of professionals ensures timely and cost-effective delivery of goods, helping our clients streamline their operations and meet their business goals. Partner with us for all your logistics needs and experience the PSJ difference.

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)

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