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% Expired Patents = 25.0

Forward Citations = 15

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6 inventors (with patents filed for the assignee):

Aruna Zhamu (12 out of 428 patents)

Bor Z Jang (12 out of 517 patents)

Song-Hai Chai (3 out of 4 patents)

4. Songhai Chai (3 out of 3 patents)

5. Yen-Po Lin (2 out of 10 patents)

6. Chueh Liu (1 out of 7 patents)

12 patents: Sort by Forward Citations

1. 11450487 - Humic acid-based supercapacitors (2022-09-20),

2. 11142459 - Dense graphene balls for hydrogen storage (2021-10-12),

3. 11121360 - Supercritical fluid production of graphene-based supercapacitor electrode from coke or coal (2021-09-14),

4. 11120952 - Supercapacitor having a high volumetric energy density (2021-09-14),

5. 11037738 - Hybrid supercapacitor containing a niobium composite metal oxide as an anode active material (2021-06-15),

6. 10957495 - Supercapacitor and electrode having cellulose nanofiber-spaced graphene sheets and production process (2021-03-23),

7. 10903020 - Rolled supercapacitor and production process (2021-01-26),

8. 10804042 - Supercapacitor electrode having highly oriented and closely packed expanded graphite flakes (2020-10-13),

9. 10727002 - Lithium ion-based internal hybrid electrochemical energy storage cell (2020-07-28),

10. 10707025 - Internal hybrid electrochemical energy storage cell having both high power and high energy density (2020-07-07),

11. 10566668 - Sodium ion-based internal hybrid electrochemical energy storage cell (2020-02-18),

12. 10446333 - Rolled supercapacitor electrode having highly oriented flakes of exfoliated or expanded graphite and production process (2019-10-15),

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Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

12 Patents

#54 in Dayton, OH

#1,067 in Ohio

#25,526 in US

#48,090 in the World

Dayton, OH, United States of America

Nanotek Instruments Group, LLC