Roh; Sang Ju
Patent Applications and Registrations
Patent applications and USPTO patent grants for Roh; Sang Ju.The latest application filed is for "automatic slope adjusting device".
- Roh; Sang Ju - Jeju-si KR
- Roh; Sang Ju - Jeju-do KR
| Patent | Date |
|---|---|
| Air-conditioning and heating system for passenger boarding bridge and control system therefor Grant 9,976,781 - Cho , et al. May 22, 2 | 2018-05-22 |
| Automatic slope adjusting device Grant 9,839,564 - Ryu , et al. December 12, 2 | 2017-12-12 |
| Automatic Slope Adjusting Device App 20160193093 - Ryu; Jae Bok ; et al. | 2016-07-07 |
| Air-conditioning And Heating System For Passenger Boarding Bridge And Control System Therefor App 20150330672 - CHO; Hee Hyeong ; et al. | 2015-11-19 |
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