Fuel cell system
US-12438164-B2 · Oct 7, 2025 · US
This page is not indexed by search engines while we improve data quality.
Jang Heejoong patents
Jang Heejoong is listed as an inventor on 37 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Jang Heejoong |
| Total patents | 37 |
| First publication | Jun 11, 2020 |
| Latest publication | Oct 7, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Fuel cell apparatus and method for controlling the same
US-12300863-B2 · May 13, 2025 · US
Fuel cell apparatus
US-12294123-B2 · May 6, 2025 · US
Gas heat-pump system and method of controlling same
US-12098870-B2 · Sep 24, 2024 · US
Energy storage apparatus
US-2024081031-A1 · Mar 7, 2024 · US
Energy storage apparatus
US-2024079678-A1 · Mar 7, 2024 · US
Energy storage system
US-2024023294-A1 · Jan 18, 2024 · US
Engine system
US-11815294-B2 · Nov 14, 2023 · US
Gas heat-pump system
US-11796231-B2 · Oct 24, 2023 · US
Gas heat-pump system and method of controlling same
US-11761690-B2 · Sep 19, 2023 · US
Recent patents
Latest publications not already listed above.
Engine system
US-11708784-B2 · Jul 25, 2023 · US
Fuel cell apparatus and method for controlling the same
US-2023178772-A1 · Jun 8, 2023 · US
Fuel cell apparatus
US-2023170500-A1 · Jun 1, 2023 · US
Fuel cell system
US-2023155148-A1 · May 18, 2023 · US
Gas engine heat pump
US-11649752-B2 · May 16, 2023 · US
Fuel cell system
US-2023148377-A1 · May 11, 2023 · US
Fuel cell system
US-2023072408-A1 · Mar 9, 2023 · US
Method of controlling gas heat-pump system
US-11592219-B2 · Feb 28, 2023 · US
Gas engine heat pump and method of operating the same
US-11525413-B2 · Dec 13, 2022 · US
Gas engine heat pump and method of operating the same
US-11519347-B2 · Dec 6, 2022 · US
Gas engine heat pump
US-11486331-B2 · Nov 1, 2022 · US
Gas heat-pump system
US-11448120-B2 · Sep 20, 2022 · US
Cogeneration system
US-11384942-B2 · Jul 12, 2022 · US
Engine system
US-2022170409-A1 · Jun 2, 2022 · US
Engine system
US-2022154979-A1 · May 19, 2022 · US
Gas engine heat pump
US-2022056829-A1 · Feb 24, 2022 · US
Gas engine heat pump and method of operating the same
US-2022056857-A1 · Feb 24, 2022 · US
Gas engine heat pump and method of operating the same
US-2022056861-A1 · Feb 24, 2022 · US
Gas engine heat pump
US-2022056837-A1 · Feb 24, 2022 · US
Gas heat-pump system
US-11248544-B2 · Feb 15, 2022 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Lg Electronics Inc | 37 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| F25B2327/001 | 21 |
| F25B30/02 | 18 |
| F25B13/00 | 14 |
| F25B27/00 | 13 |
| Y02T10/12 | 12 |