Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12258733 | Construction machine | — | 2025-03-25 |
| 11542683 | Construction machine | — | 2023-01-03 |
| 10988915 | Hydraulic system of construction machinery | — | 2021-04-27 |
| 10215197 | Method, device, and system for controlling hydraulic pump of construction machine | Dong Mok Kim, Nag In Kim, Yong Tak Hyun, Duk Sang KIM, Min Seok Ko +3 more | 2019-02-26 |
| 10202741 | Closed-circuit hydraulic system for construction machine | Ki Hwan Hong | 2019-02-12 |
| 9732501 | Boom driving system for hybrid excavator and control method therefor | — | 2017-08-15 |
| 9512596 | Hybrid excavator boom actuating system and method for controlling same | Ki Hwan Hong | 2016-12-06 |
| 9431930 | Emergency stop method for hybrid construction equipment and brake control device | Sang-Il Kim, Kyeong Keun Kim | 2016-08-30 |
| 9260835 | System for driving a boom of a hybrid excavator and a control method thereof | — | 2016-02-16 |
| 9090721 | Highly heat resistant and highly strong acrylic copolymer, a resin composition comprising the same and an optical film and an IPS mode liquid crystal display device comprising the same | Da-Eun Sung, Su-Kyung Kim, Chang Hun Han, Dae Woo Lee, Jae Bum SEO +2 more | 2015-07-28 |
| 8765896 | Acrylic copolymer with high heat resistance and high strength, and optical film comprising the same | Su-Kyung Kim, Da-Eun Sung, Chang Hun Han, Jae Bum SEO, Eun Jung Choi +2 more | 2014-07-01 |
| 8536275 | Acryl-based copolymers and optical film including the same | Chang Hun Han, Dae Woo Lee, Eun Jung Choi | 2013-09-17 |