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 the US
| # | Firm | Share | Momentum | Breadth | Openness | |||
|---|---|---|---|---|---|---|---|---|
| 1 | New | Cooley LLP | 26 | 5.5% | – | 3 | 3 | |
| 2 | New | Heslin Rothenberg Farley Mesiti | 21 | 4.5% | – | 0 | 0 | |
| 3 | New | Woodard Emhardt Henry Reeves & Wagner | 18 | 3.8% | – | 0 | 0 | |
| 4 | New | Tucker Ellis | 14 | 3.0% | – | 2 | 2 | |
| 5 | New | Perkins Coie LLP | 13 | 2.8% | – | 2 | 2 | |
| 6 | New | Nixon Peabody LLP | 12 | 2.6% | – | 0 | 0 | |
| 7 | New | McCarter English | 11 | 2.3% | – | 1 | 1 | |
| 7 | New | DAVID J BYER K & L GATES LLP | 11 | 2.3% | – | 0 | 0 | |
| 9 | New | Fisher Broyles LLP | 10 | 2.1% | – | 1 | 1 | |
| 9 | New | Crowell & Moring LLP | 10 | 2.1% | – | 1 | 1 | |
| 9 | New | SoCal IP Law Group LLP | 10 | 2.1% | – | 1 | 1 | |
+135 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 | |
|---|---|---|---|---|---|---|---|---|---|
| Cooley LLP | #1 | 3 | 3 | 3 | 2 | 4 | 3 | 1 | 2 |
| Heslin Rothenberg Farley Mesiti | #2 | 1 | 1 | 1 | 1 | 3 | 4 | 8 | |
| Woodard Emhardt Henry Reeves & Wagner | #3 | 1 | 2 | 1 | |||||
| Tucker Ellis | #4 | 5 | 4 | 4 | 5 | 2 | |||
| Perkins Coie LLP | #5 | 6 | 2 | 3 | 3 | 3 | 2 | ||
| Nixon Peabody LLP | #6 | 6 | 6 | 4 | 6 | 2 | |||
| DAVID J BYER K & L GATES LLP | #7 | 2 | 3 | 7 | 8 | 8 | 5 | ||
| Crowell & Moring LLP | #9 | 3 | 2 | 4 | 5 | ||||
| Hamilton Brook Smith Reynolds | Top 10% | 4 | 10 | 9 | 6 | 2 | 6 | ||
| Wolf, Greenfield & Sacks, P.C. | Top 10% | 5 | 8 | 10 | 1 | ||||
| Snell Wilmer | Top 25% | 6 | 5 | 3 | |||||
| Christensen O'Connor Johnson | Top 25% | 3 |
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 | QUALCOMM INC | 1,574 | 1.71 |
| 2 | Micron Technology, Inc. | 1,276 | 1.06 |
| 3 | GOOGLE LLC | 908 | 2.36 |
| 4 | APPLE INC | 888 | 1.51 |
| 5 | MICROSOFT TECHNOLOGY LICENSING LLC | 652 | 1.40 |
| 6 | SNAP INC | 376 | 1.56 |
| 7 | HONEYWELL INT INC | 373 | 1.29 |
| 8 | APPLIED MATERIALS INC | 372 | 2.22 |
| 9 | BOEING CO | 360 | 2.16 |
| 10 | INTEL CORP | 313 | 1.50 |
+4,484 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