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Corridor Briefs

TrademarkAll officesKR-US, KR-JP, KR-EM, KR-CN, US-JP, US-EM, US-CN, JP-EM, JP-CN, and EM-CN

All offices KRKIPO USUSPTO JPJPO EMEUIPO CNCNIPA

Cross-border families

527,512

Filing corridors

Relationship markets

KR-US, KR-JP, KR-EM, KR-CN, US-JP, US-EM, US-CN, JP-EM, JP-CN, and EM-CN

Largest filing corridor

US-EM

187,182 families

All available years · Filing dates checked through 2026-09-02

US-EM

Partners

USPTO ↔ EUIPO

Families: 187,182
US → EM: 159,455
EM → US: 27,727

US → EM · 85.2% of observed directionsOpen brief ↗

Continue your analysis

Find partner candidatesRank representative pairs in KR-US, KR-JP, KR-EM, KR-CN, US-JP, US-EM, US-CN, JP-EM, JP-CN, and EM-CN.Search familiesReview documents, applicants, representatives, and dates.Review filing trends

KRUSKR-US

Partners

KIPO ↔ USPTO

Families: 98,829
US → KR: 76,291
KR → US: 22,538

US → KR · 77.2% of observed directionsOpen brief ↗

US-CN

Partners

USPTO ↔ CNIPA

Families: 75,059
US → CN: 68,991
CN → US: 6,068

US → CN · 91.9% of observed directionsOpen brief ↗

KR-EM

Partners

KIPO ↔ EUIPO

Families: 39,427
EM → KR: 33,589
KR → EM: 5,838

EM → KR · 85.2% of observed directionsOpen brief ↗

KR-JP

Partners

KIPO ↔ JPO

Families: 29,426
JP → KR: 26,816
KR → JP: 2,610

JP → KR · 91.1% of observed directionsOpen brief ↗

US-JP

Partners

USPTO ↔ JPO

Families: 27,050
JP → US: 15,187
US → JP: 11,863

JP → US · 56.1% of observed directionsOpen brief ↗

EM-CN

Partners

EUIPO ↔ CNIPA

Families: 26,540
EM → CN: 22,555
CN → EM: 3,985

EM → CN · 85.0% of observed directionsOpen brief ↗

KR-CN

Partners

KIPO ↔ CNIPA

Families: 22,851
CN → KR: 12,714
KR → CN: 10,137

CN → KR · 55.6% of observed directionsOpen brief ↗

JP-CN

Partners

JPO ↔ CNIPA

Families: 13,356
JP → CN: 12,622
CN → JP: 734

JP → CN · 94.5% of observed directionsOpen brief ↗

JP-EM

Partners

JPO ↔ EUIPO

Families: 7,792
JP → EM: 6,354
EM → JP: 1,438

JP → EM · 81.5% of observed directionsOpen brief ↗

Compare filing activity over time.

Corridor Briefs

USEMUS-EM

Continue your analysis

USCNUS-CN

KREMKR-EM

KRJPKR-JP

USJPUS-JP

EMCNEM-CN

KRCNKR-CN

JPCNJP-CN

JPEMJP-EM

US-EM

US-CN

KR-EM

KR-JP

US-JP

EM-CN

KR-CN

JP-CN

JP-EM