Korean inventions filed in the US rose 46%
KR → US+46%KR → JP+38%KR → EP+24%KR → CN+17%CN → US+12%EP → KR+9%EP → US+8%CN → JP+7%CN → KR+6%CN → EP+6%EP → JP+5%JP → KR+4%JP → US+2%US → KR+2%US → JP+1%US → EP-1%JP → EP-2%JP → CN-3%US → CN-5%EP → CN-9%
152Kpatent families in the busiest corridorCN→US
+46%the fastest-growing corridorKR→US
25%of CN → US work goes to ten firms in the USCN→US
Corridors
Firms sending work from Korea
| # | Firm | Share | Breadth | Openness | ||||
|---|---|---|---|---|---|---|---|---|
| 1 | ▲25 | Royal Patent & Law Firm | 462 | 8.2% | +7.39 | 1 | 0 | |
| 2 | ▼1 | Kim & Chang | 264 | 4.7% | -3.12 | 2 | 1 | |
| 3 | ▲9 | 특허법인아주 | 259 | 4.6% | +2.63 | 0 | 0 | |
| 4 | ▼2 | WOOIN IP Law Firm | 234 | 4.2% | +0.24 | 3 | 1 | |
| 5 | ▼2 | Dana Patent & Law Firm | 172 | 3.1% | -0.52 | 1 | 0 | |
| 6 | ▲1 | With People Law Office | 148 | 2.6% | -0.10 | 2 | 1 | |
| 7 | ▲8 | THEWAVE IP Law Firm | 133 | 2.4% | +0.87 | 1 | 1 | |
| 8 | ▼2 | Y.P. Lee, Mock & Partners | 124 | 2.2% | -0.62 | 2 | 0 | |
| 9 | ▼4 | KBK & Associates | 118 | 2.1% | -0.77 | 1 | 1 | |
| 10 | ▲8 | A&K Patent & Law Office | 110 | 2.0% | +0.65 | 2 | 1 | |
+364 ranked firmsFull table | ||||||||
Families each firm handled, 2023–2025. Arrows show the rank change since 2020–2022.
Technology
| Overall | 1–5Chemicals and health | 6–8, 12–13Metals, machines and vehicles | 9–11Electronics and instruments | 14–21, 28Household, leisure and materials | 22–27Textiles and clothing | 29–34Food and drink | 35–38, 42Business and technology services | 39–41, 43–45Transport, education and personal services | |
|---|---|---|---|---|---|---|---|---|---|
| Royal Patent & Law Firm | #1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 |
| Kim & Chang | #2 | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 2 |
| 특허법인아주 | #3 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 3 |
| WOOIN IP Law Firm | #4 | 4 | 4 | 3 | 3 | 3 | 6 | 3 | 4 |
| Dana Patent & Law Firm | #5 | 5 | 5 | 4 | 5 | 5 | 3 | 4 | 4 |
Rank in each Nice class group, by trademark filings 2023–2025. Overall: rank in the whole corridor, shown as a band beyond 10th.
Applicants
| # | Applicant | Families | Offices per family |
|---|---|---|---|
| 1 | SAMSUNG ELECTRONICS CO., LTD. | 4,193 | 1.60 |
| 2 | LG Electronics Inc. | 2,841 | 1.87 |
| 3 | LG Energy Solution, LTD. | 1,716 | 2.71 |
| 4 | LG CHEMICAL LTD | 1,015 | 2.49 |
| 5 | Samsung Display Co., Ltd. | 323 | 1.78 |
| 6 | HYUNDAI MOTOR CO LTD | 317 | 1.81 |
| 7 | Kia Corporation | 316 | 1.81 |
| 8 | KOREAN TOBACCO GINSENG COMMUNITY | 265 | 2.51 |
| 9 | LG Display Co.,Ltd. | 237 | 1.99 |
| 10 | SAMSUNG SDI CO., LTD. | 208 | 1.79 |
+699 ranked applicants | |||
Top 10 by patent families filed abroad, 2020–2022.
Method
| Measure | What it counts | Minimum |
|---|---|---|
| Volume | Families a firm handled in the corridor | 10 families |
| Momentum | Change in market share since the previous period | 10 families |
| Breadth | Firms on the other side it worked with | 10 families, 3 partners |
| Openness | Partners that are new in the last two years | 10 families, 3 partners |
| Reach | Other IP5 offices an applicant files in, per family | 100 families |
SourcesPublished records of the IP5 offices and EUIPO
PeriodsPatents: 2020–2022 vs 2017–2019, by priority year. Trademarks: 2023–2025 vs 2020–2022, by filing year.
Not rankedIndividuals, in-house IP teams, applicant–firm pairs
Ranks come from the data only. Subscriptions, payments and partnerships never change a rank.
Corrections close on December 2, 2026. The corrected edition is 2026.1.No corrections yetReport an error