| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 9 | |
| #2 | China | 4 | |
| #3 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Computer technology | |
| #2 | Control | |
| #3 | Audio-visual technology | |
| #4 | Measurement | |
| #5 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Electric digital data processing | |
| #2 | Data recognition and presentation | |
| #3 | Teaching materials | |
| #4 | Writing or drawing tools | |
| #5 | Television | |
| #6 | Analysing materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lee Sang Gyu | 7 |
| #2 | Lee Suk Joo | 5 |
| #3 | Moon A-Ram | 4 |
| #4 | Lee Sang-Gyu | 4 |
| #5 | Park Bong Ki | 3 |
| #6 | Kim Sang Ho | 3 |
| #7 | Park Ji-Wan | 3 |
| #8 | Han Eu-Gene | 3 |
| #9 | Ha Sung Hoon | 2 |
| #10 | Lee Chul Kyu | 2 |
| Publication | Filing date | Title |
|---|---|---|
| WO2020080878A1 | Electronic pen, electronic device, and controlling method therefor | |
| WO2017026841A1 | Method for language learning using electronic pen and an apparatus therefor | |
| WO2016060409A2 | Electronic pen, electronic device linked to electronic pen, and method for controlling electronic device | |
| WO2015194899A1 | Electronic pen, electronic pen-related application, electronic pen bluetooth registration method, and dot code and method for encoding or decoding same |