For the Inventor, By the Inventor

Enter assignee name

Charlotte, NC, United States of America

Celgard Inc.

USPTO Granted Patents = 177

% Expired Patents = 4.5

CIPO Patents = 4

EPO Patents = 20

Trademarks = 7

Forward Citations = 1,508

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132 inventors (with patents filed for the assignee):

Xiaomin Zhang (39 out of 45 patents)

Zhengming Zhang (36 out of 37 patents)

Lie Shi (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 (18 out of 19 patents)

8. Changqing Wang Adams (18 out of 19 patents)

9. Amitava Sengupta (16 out of 20 patents)

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

11. Stefan Reinartz (13 out of 14 patents)

12. Robert A Nark (13 out of 13 patents)

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

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

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

Core Competencies:

Battery Separators

Microporous Membranes

Lithium-Ion Batteries

Multilayer Membranes

Polyolefin Membranes

Ceramic Coating

High Voltage Batteries

Improved Additives

Functionalized Membranes

Solid State Batteries

Low Electrical Resistance

Coated Separators

177 patents: Sort by Forward Citations

1. 12738599 - Microporous membrane separators for lithium ion rechargeable batteries and related methods (2026-09-15),

2. 12617144 - Pin designs for high COF polymer membranes or separator membranes, membrane or separator tension measuring, and related methods (2026-05-05),

3. 12603321 - Battery separators, electrodes, cells, lithium batteries and related methods (2026-04-14),

4. 12573718 - Separator for electric storage device and electric storage device (2026-03-10),

5. 12573717 - Microporous membranes, separators, lithium batteries, and related methods (2026-03-10),

6. 12496815 - Multilayer porous membranes and methods of making the same (2025-12-16),

7. 12473416 - Functionalized porous membranes and methods of manufacture and use (2025-11-18),

8. 12469931 - Battery separator including microporous polyolefin membrane with ceramic coating (2025-11-11),

9. 12466119 - Microlayer membranes, improved battery separators, and related methods (2025-11-11),

10. 12431529 - High melt temperature microporous lithium-ion rechargeable battery separators and methods of preparation and use (2025-09-30),

11. 12427543 - Membranes, separators, batteries, and methods (2025-09-30),

12. 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),

13. 12412956 - Battery separators, coated battery separators, batteries, and related methods (2025-09-09),

14. 12370733 - Microlayer membranes, improved battery separators, and related methods (2025-07-29),

15. 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),

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 - Sep 15 2026

177 Patents

#18 in Charlotte, NC

#67 in North Carolina

#2,278 in US

#4,693 in the World

Charlotte, NC, United States of America

Celgard Inc.

Forward Citations = 1,508

132 inventors:

Xiaomin Zhang (39 out of 45 patents)

Zhengming Zhang (36 out of 37 patents)

Lie Shi (33 out of 33 patents)

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

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

Please report any incorrect information to [email protected]

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