Jang; Heejoong
Patent Applications and Registrations
Patent applications and USPTO patent grants for Jang; Heejoong.The latest application filed is for "engine system".
- Jang; Heejoong - Seoul KR
| Patent | Date |
|---|---|
| Gas heat-pump system Grant 11,448,120 - Jang , et al. September 20, 2 | 2022-09-20 |
| Cogeneration system Grant 11,384,942 - Jang , et al. July 12, 2 | 2022-07-12 |
| Engine System App 20220170409 - LEE; Jinwoo ; et al. | 2022-06-02 |
| Engine System App 20220154979 - JANG; Heejoong ; et al. | 2022-05-19 |
| Gas Engine Heat Pump And Method Of Operating The Same App 20220056857 - JANG; Heejoong ; et al. | 2022-02-24 |
| Gas Engine Heat Pump App 20220056829 - JANG; Heejoong ; et al. | 2022-02-24 |
| Gas Engine Heat Pump And Method Of Operating The Same App 20220056861 - Jang; Heejoong ; et al. | 2022-02-24 |
| Gas Engine Heat Pump App 20220056837 - JANG; Heejoong ; et al. | 2022-02-24 |
| Gas heat-pump system Grant 11,248,544 - Jang , et al. February 15, 2 | 2022-02-15 |
| Gas Heat-pump System And Method Of Controlling Same App 20210199355 - JANG; Heejoong ; et al. | 2021-07-01 |
| Method Of Controlling Gas Heat-pump System App 20210190392 - JANG; Heejoong ; et al. | 2021-06-24 |
| Gas Heat-pump System And Method Of Controlling Same App 20210180805 - JANG; Heejoong ; et al. | 2021-06-17 |
| Gas Heat-pump System App 20210180510 - Jang; Heejoong ; et al. | 2021-06-17 |
| Gas Heat-pump System App 20210172656 - JANG; Heejoong ; et al. | 2021-06-10 |
| Gas Heat-pump System App 20210172392 - JANG; Heejoong ; et al. | 2021-06-10 |
| Cogeneration System App 20200182487 - JANG; Heejoong ; et al. | 2020-06-11 |
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