| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 12 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Transport | |
| #3 | Packaging and shipping | |
| #4 | IT methods for management | |
| #5 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Cross-cutting vehicle technologies | |
| #3 | Cranes | |
| #4 | Lifting and pushing | |
| #5 | Aeroplanes | |
| #6 | Data processing systems | |
| #7 | Street cleaning | |
| #8 | Marine propulsion | |
| #9 | Ships | |
| #10 | Cleaning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kak Dong Suk | 12 |
| Publication | Filing date | Title |
|---|---|---|
| KR102215179B1 | Crushing Method Using Auxiliary Equipment of Excavator For A Core Drill | |
| KR20200059911A | Auxiliary Equipment of Excavator For A Core Drill | |
| KR101785244B1 | Excavator of auxiliary equipment and connection | |
| KR20140123453A | Excavator rotation tool | |
| KR20140055005A | Excavator of auxiliary equipment connection | |
| KR20120093110A | Excavator tool | |
| KR20120118388A | Excavator tool | |
| KR20120090700A | Excavator tool | |
| KR20110070953A | Excavator tool | |
| KR20110070952A | Excavator tool | |
| KR20090068997A | Excavator tool for block | |
| KR20080107229A | Wig craft propeller rotation equipment |