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For the Inventor, By the Inventor

Anyang, South Korea

Lsis Co., Ltd.


USPTO Granted Patents = 915

% Expired Patents = 29.6


Trademarks = 6

Forward Citations = 1,595

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618 inventors (with patents filed for the assignee):

goldMedal Anno Yoo (26 out of 26 patents)

silverMedal Chun-Suk Yang (21 out of 24 patents)

bronzeMedal Yong Kil Choi (12 out of 12 patents)

4.  Yong Ho Chung (11 out of 11 patents)

5.  Seung Woo Choi (11 out of 13 patents)

6.  Gum Tae Son (10 out of 10 patents)

7.  Chun Suk Yang (10 out of 11 patents)

8.  Yong Gee Cho (10 out of 10 patents)

9.  Seung Pil Yang (10 out of 12 patents)

10.  Gyeong Ho Lee (9 out of 13 patents)

11.  Seung-Ju Lee (9 out of 9 patents)

12.  Hak-Jun Lee (9 out of 11 patents)

13.  Jong-Ho Park (9 out of 15 patents)

14.  Kil Young Ahn (9 out of 18 patents)

15.  Hae Yong Park (9 out of 9 patents)


Core Competencies:
Inverter
Energy Storage
Circuit Breaker
Power Control
Microgrid
Relay Device
Electric Vehicle Charging
Heat Dissipation
Power Semiconductor
Safety Relay
Programmable Logic Controller
Voltage Control

915 patents:

1. 11296639 - Inverter (2022-04-05),
2. 11293994 - Earth leakage circuit breaker capable of outputting type of leakage current and method of controlling the same (2022-04-05),
3. 11277008 - Energy storage system (2022-03-15),
4. 11234348 - Heatsink module for inverter (2022-01-25),
5. 11223229 - Uninterruptible power supply system comprising energy storage system (2022-01-11),
6. 11211797 - MICROGRID system (2021-12-28),
7. 11205951 - Power conversion device utilizing a relay unit with multiple relays (2021-12-21),
8. 11205902 - Energy storage system (2021-12-21),
9. 11189994 - Circuit breaker (2021-11-30),
10. 11186675 - Epoxy resin composition and transformer comprising the same (2021-11-30),
11. 11177098 - DC circuit breaker having arc blowout device (2021-11-16),
12. 11139675 - Hybrid energy storage system (2021-10-05),
13. 11128128 - Directional over-current ground relay (DOCGR) using sampled value and method for operating the DOCGR (2021-09-21),
14. 11102088 - Communication data modeling method (2021-08-24),
15. 11075521 - Energy storage system (2021-07-27),
Lsis Co., Ltd., based in Anyang, South Korea, specializes in advanced energy storage systems and related technologies. The company focuses on developing innovative solutions such as inverters, circuit breakers, and power control systems that enhance energy efficiency and reliability. Lsis is also engaged in the design and manufacturing of microgrid technologies and electric vehicle charging systems, contributing to the evolution of sustainable energy infrastructure. Their expertise extends to heat dissipation and relay devices, positioning them as a key player in the energy sector.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Lsis Co., Ltd.
915 Patents

#1 in Anyang

#34 in South Korea

#1,108 in the World

Anyang, KR
Anyang, South Korea

Lsis Co., Ltd.

Forward Citations = 1,595

618 inventors:

goldMedal Anno Yoo (26 out of 26 patents)

silverMedal Chun-Suk Yang (21 out of 24 patents)

bronzeMedal Yong Kil Choi (12 out of 12 patents)

4.  Yong Ho Chung (11 out of 11 patents)

5.  Seung Woo Choi (11 out of 13 patents)

Please report any incorrect information to [email protected]
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