| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 3 | |
| #2 | United States | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | China | 2 | |
| #5 | Japan | 1 | |
| #6 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Furniture and games | |
| #3 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Physical therapy devices | |
| #2 | Chairs and beds | |
| #3 | Operating tables | |
| #4 | Building materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yang Byung Heon | 6 |
| #2 | Yang Moon Seok | 4 |
| #3 | Yang Byeong Heon | 3 |
| Publication | Filing date | Title |
|---|---|---|
| KR20200044401A | a office chair with massage function | |
| WO2016039567A1 | Massage backrest | |
| WO2014137178A1 | Functional chair including acupressure balls | |
| WO2013137679A1 | Functional chair | |
| CN102892333A | Chair having divided backrest panel with massager |