| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 9 | |
| #2 | Singapore | 4 | |
| #3 | China | 2 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Structural elements | |
| #2 | General building constructions | |
| #3 | Scaffolding | |
| #4 | Swimming pools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lee Chang Nam | 15 |
| #2 | Lee Jun Suk | 1 |
| #3 | Kim Woo Chul | 1 |
| #4 | Lee Chang-Nam | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2021066294A1 | Method for constructing prefabricated wall by means of prefabricated wall modules | |
| WO2019004597A1 | Steel frame member fire-resistant panel fixing structure | |
| US2010287878A1 | Structural composite hybrid beam(schb) consisting of cold-formed steel and cast-in-place concrete having attached fire-resistant coating material and constructing method of the schb |