For the Inventor, By the Inventor

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Charlotte, NC, United States of America

Celgard Inc.

USPTO Granted Patents = 172

CIPO Patents = 4

EPO Patents = 20

Trademarks = 10

Forward Citations = 1,455

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129 inventors (with patents filed for the assignee):

Xiaomin Zhang (38 out of 44 patents)

Lie Shi (33 out of 33 patents)

Zhengming Zhang (33 out of 33 patents)

4. Kristoffer K Stokes (30 out of 44 patents)

5. Karl F Humiston (22 out of 23 patents)

6. C Glen Wensley (19 out of 27 patents)

7. Kang Karen Xiao (17 out of 17 patents)

8. Changqing Wang Adams (17 out of 17 patents)

9. Amitava Sengupta (16 out of 20 patents)

10. Eric Robert White (13 out of 13 patents)

11. Stefan Reinartz (13 out of 13 patents)

12. Ronnie E Smith (13 out of 13 patents)

13. Ronald W Call (13 out of 13 patents)

14. Gareth Peter Taylor (13 out of 26 patents)

15. Jill V Watson (12 out of 12 patents)

Core Competencies:

Functionalized Porous Membranes

Battery Separators

Microporous Membranes

Lithium-Ion Batteries

Microlayer Membranes

Solid State Batteries

High Voltage Lithium Batteries

Coated Separators

Low Electrical Resistance Membranes

Multilayer Microporous Separators

Additives for Battery Performance

Polyolefin Membranes

172 patents: Sort by Forward Citations

1. 12496815 - Multilayer porous membranes and methods of making the same (2025-12-16),

2. 12473416 - Functionalized porous membranes and methods of manufacture and use (2025-11-18),

3. 12469931 - Battery separator including microporous polyolefin membrane with ceramic coating (2025-11-11),

4. 12466119 - Microlayer membranes, improved battery separators, and related methods (2025-11-11),

5. 12431529 - High melt temperature microporous lithium-ion rechargeable battery separators and methods of preparation and use (2025-09-30),

6. 12427543 - Membranes, separators, batteries, and methods (2025-09-30),

7. 12417886 - Depositions or layers for microporous membranes, improved membranes, improved lithium battery separators, improved batteries, improved high voltage lithium batteries, and related methods (2025-09-16),

8. 12412956 - Battery separators, coated battery separators, batteries, and related methods (2025-09-09),

9. 12370733 - Microlayer membranes, improved battery separators, and related methods (2025-07-29),

10. 12300782 - Solid state batteries, SSE batteries, lithium metal batteries with solid state electrolytes, HSSE, separators, and/or coatings, and/or related methods (2025-05-13),

11. 12278348 - System and method for differentiating shorting in a battery (2025-04-14),

12. 12263649 - Separators, batteries, systems, vehicles, and related methods (2025-04-01),

13. 12246520 - Low electrical resistance microporous battery separator membranes, separators, cells, batteries, and related methods (2025-03-11),

14. 12230760 - Microporous membranes, battery separators, batteries, and devices having the same (2025-02-18),

15. 12218379 - Multilayer microporous separators for lithium ion secondary batteries and related methods (2025-02-04),

Celgard, Inc. is a manufacturer of high-performance specialty membranes and separator materials used in a variety of applications such as batteries, filtration, and more. With over 30 years of experience, Celgard has become a leading provider of advanced battery separator products for the energy storage industry worldwide. Their innovative solutions ensure improved performance, safety, and reliability in lithium-ion batteries. Visit their website to learn more about their products and services.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 13 2026

172 Patents

#14 in Charlotte, NC

#61 in North Carolina

#2,250 in US

#4,691 in the World

Charlotte, NC, United States of America

Celgard Inc.

Forward Citations = 1,455

129 inventors:

Xiaomin Zhang (38 out of 44 patents)

Lie Shi (33 out of 33 patents)

Zhengming Zhang (33 out of 33 patents)

4. Kristoffer K Stokes (30 out of 44 patents)

5. Karl F Humiston (22 out of 23 patents)

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