For the Inventor, By the Inventor

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Shenzhen, China

Gem Co., Ltd.

USPTO Granted Patents = 27

% Expired Patents = 3.7

EPO Patents = 6

Trademarks = 2

Forward Citations = 7

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58 inventors (with patents filed for the assignee):

Kaihua Xu (23 out of 33 patents)

Rizky Wanaldi (16 out of 22 patents)

Satryo Soemantri Brodjonegoro (16 out of 23 patents)

4. Andi Syaputra Hasibuan (16 out of 23 patents)

5. Tegar Mukti Aji (16 out of 23 patents)

6. Evan Wahyu Kristiyanto (10 out of 14 patents)

7. Piyan Rahmadi (9 out of 12 patents)

8. Aad Alief Rasyidi Baking (7 out of 7 patents)

9. Kun Zhang (5 out of 25 patents)

10. Emil Salim (5 out of 8 patents)

11. Arnaldo Marulitua Sinaga (4 out of 6 patents)

12. Cong Li (2 out of 53 patents)

13. Seungsoo Hong (2 out of 2 patents)

14. Zhenkang Jiang (2 out of 3 patents)

15. Yi Wang (2 out of 3 patents)

27 patents: Sort by Forward Citations

1. 12522515 - Cathode material for sodium-ion batteries, preparation method therefor, and application thereof (2026-01-13),

2. 12521643 - System for preparing new energy Ni—Co—Mn raw material from laterite nickel ore (2026-01-13),

3. 12473611 - Dynamic optimization method for acid-to-ore ratio in high-pressure leaching of laterite nickel ore (2025-11-18),

4. 12404567 - Treatment method for laterite nickel ore by curing and roasting-water leaching-atmospheric pressure acid leaching (2025-09-02),

5. 12403413 - Method for green and low-cost extraction of nickel-cobalt from laterite nickel ore (2025-09-02),

6. 12391574 - Method for continuously preparing mixed hydroxide precipitate from laterite nickel ore by hydrometallurgy (2025-08-19),

7. 12384709 - Wastewater treatment process in production of nickel cobalt hydroxide (2025-08-12),

8. 12378639 - Process and system for recovering manganese from high-pressure leaching system of laterite nickel ore (2025-08-05),

9. 12378637 - Treatment system for the slag phase after removing iron-aluminum-chromium from leaching solution of laterite nickel ore (2025-08-05),

10. 12378630 - Combined heat exchange system of flash tank and preheater for laterite nickel ore leaching (2025-08-05),

11. 12362043 - System for optimizing duration time of high-pressure leaching of laterite nickel ore (2025-07-15),

12. 12344941 - Automatic descaling system for high-pressure reactor of laterite nickel ore (2025-07-01),

13. 12343734 - Cylindrical ore washing machine used for hydrometallurgical smelting of laterite nickel ore (2025-07-01),

14. 12325898 - High-pressure reactor acid adding system for laterite nickel ore hydrometallurgy (2025-06-10),

15. 12325896 - Treatment method and application for laterite nickel ore leaching solution with high calcium and magnesium content (2025-06-10),

Gem Co., Ltd. is a leading manufacturer and distributor of high-quality gemstones. Specializing in rare and unique stones, we offer a wide range of products including diamonds, sapphires, rubies, and emeralds. With a commitment to excellence and customer satisfaction, Gem Co., Ltd. has built a strong reputation in the industry for delivering premium gems to clients worldwide.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 22 2026

27 Patents

#163 in Shenzhen

#1,113 in China

#23,953 in the World

Shenzhen, China

Gem Co., Ltd.

Forward Citations = 7

58 inventors:

Kaihua Xu (23 out of 33 patents)

Rizky Wanaldi (16 out of 22 patents)

Satryo Soemantri Brodjonegoro (16 out of 23 patents)

4. Andi Syaputra Hasibuan (16 out of 23 patents)

5. Tegar Mukti Aji (16 out of 23 patents)

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