Electrochemical device
US-2026005264-A1 · Jan 1, 2026 · US
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Jeong Kwi Seong patents
Jeong Kwi Seong is listed as an inventor on 55 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Jeong Kwi Seong |
| Total patents | 55 |
| First publication | Dec 17, 2015 |
| Latest publication | Jan 1, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Electrochemical system
US-2025354272-A1 · Nov 20, 2025 · US
Cryogenic liquid storage apparatus
US-12313223-B2 · May 27, 2025 · US
Electrochemical system
US-2025146140-A1 · May 8, 2025 · US
Hydrogen storage system
US-12281759-B2 · Apr 22, 2025 · US
Filter apparatus for electrochemical device
US-2025125387-A1 · Apr 17, 2025 · US
Cryogenic liquid storage apparatus
US-2024035622-A1 · Feb 1, 2024 · US
Electrochemical Device
US-2023265570-A1 · Aug 24, 2023 · US
Electrochemical stack assembly
US-2023178785-A1 · Jun 8, 2023 · US
Hydrogen storage system
US-2022341546-A1 · Oct 27, 2022 · US
Recent patents
Latest publications not already listed above.
Fuel cell with corrosion resistance
US-11450875-B2 · Sep 20, 2022 · US
Cell-monitoring connector and fuel cell having structure for detachably mounting the cell-monitoring connector thereon
US-11177491-B2 · Nov 16, 2021 · US
Laser welding apparatus
US-11014201-B2 · May 25, 2021 · US
Fuel cell stack pressurized by press forks and assembly method of the same
US-10985396-B2 · Apr 20, 2021 · US
Method and system for diagnosing state of fuel cell
US-10910659-B2 · Feb 2, 2021 · US
Apparatus and method for controlling operation of fuel cell system
US-10892502-B2 · Jan 12, 2021 · US
Apparatus and method for diagnosing fuel cell and vehicle system
US-10777830-B2 · Sep 15, 2020 · US
Fuel cell having structure for detachably mounting cell-monitoring connector thereon
US-2020185740-A1 · Jun 11, 2020 · US
Fuel cell with corrosion resistance
US-2020185749-A1 · Jun 11, 2020 · US
Manifold block of fuel cell stack and method of manufacturing the same
US-10581095-B2 · Mar 3, 2020 · US
Inspection apparatus of electrolyte membrane
US-10569228-B2 · Feb 25, 2020 · US
Apparatus and method for controlling operation of fuel cell system
US-2019312291-A1 · Oct 10, 2019 · US
Fuel cell system and fuel cell stack housing
US-10424807-B2 · Sep 24, 2019 · US
Method and system for diagnosing state of fuel cell
US-2019229358-A1 · Jul 25, 2019 · US
Laser welding apparatus
US-2019184502-A1 · Jun 20, 2019 · US
Fuel cell stack and assembly method of the same
US-2019181485-A1 · Jun 13, 2019 · US
Method and system for diagnosing state of fuel cell
US-10276884-B2 · Apr 30, 2019 · US
Apparatus and method for diagnosing state of fuel cell stack
US-10249895-B2 · Apr 2, 2019 · US
Inspection apparatus of electrolyte membrane
US-2019054425-A1 · Feb 21, 2019 · US
Method of controlling operation of fuel cell
US-2018351185-A1 · Dec 6, 2018 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Hyundai Motor Co Ltd | 55 |
| Kia Motors Corp | 23 |
| Kia Corp | 9 |
| Kangnam Univ Industry-Academia Coop Found | 3 |
| Hyundai Autron Co Ltd | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| Y02E60/50 | 48 |
| H01M2250/20 | 33 |
| Y02T90/40 | 27 |
| H01M8/04559 | 18 |
| H01M8/04649 | 16 |