Each patent family counts as one connection per partner firm per year. A family linked to two partner firms in the same year counts as two connections.
These relationship metrics cover observed cross-border filings with identifiable representatives on both sides in the served sources. IP5 support does not mean every filing or representative is captured.
US representative evidence is limited to granted documents in the source; pre-grant filings without that evidence are absent from counsel relationships. This is a counsel-evidence limit, not a cutoff for corridor filing volume.
No observed relationship is not proof that the firms have never worked together. Missing representative evidence and unlinked identities can leave gaps.
United States · 1,000 observed flows
Mostly outbound - Observed flows point outward to partners
Deep observed firm-pair flow history (1000 observations)
United States · 1,000 observed flows
Deep observed firm-pair flow history (1000 observations)
United States · 1,000 observed flows
Deep observed firm-pair flow history (1000 observations)
More inbound - Observed flows point inward more often
United States · 1,000 observed flows
Deep observed firm-pair flow history (1000 observations)
Similar firm size (medium) - Easy collaboration
Observed international relationships by corridor
Illustrative sample totals; no observation period assigned. A family can appear in several corridors.
Ranked by observed exchange.
Recent changes on saved firms.
KR to US remains the first shortlist route
The route has deep partner liquidity, but one-sided flow means partner fit matters more than raw volume.
KR to JP shows an active two-way corridor
Explore the firms active in this corridor, then compare their practice fields and clients.
The sample below uses an invented firm. This is the same view filled with recorded filings. The top three firms show their names; the rest show their metrics.
Each patent family counts as one connection per partner firm per year. A family linked to two partner firms in the same year counts as two connections.
These relationship metrics cover observed cross-border filings with identifiable representatives on both sides in the served sources. IP5 support does not mean every filing or representative is captured.
US representative evidence is limited to granted documents in the source; pre-grant filings without that evidence are absent from counsel relationships. This is a counsel-evidence limit, not a cutoff for corridor filing volume.
No observed relationship is not proof that the firms have never worked together. Missing representative evidence and unlinked identities can leave gaps.
Filing years 2015–2026
Each patent family counts as one connection per partner firm per year. A family linked to two partner firms in the same year counts as two connections.
These relationship metrics cover observed cross-border filings with identifiable representatives on both sides in the served sources. IP5 support does not mean every filing or representative is captured.
US representative evidence is limited to granted documents in the source; pre-grant filings without that evidence are absent from counsel relationships. This is a counsel-evidence limit, not a cutoff for corridor filing volume.
No observed relationship is not proof that the firms have never worked together. Missing representative evidence and unlinked identities can leave gaps.
China · 8,075 observed flows
Mostly outbound - Observed flows point outward to partners
Deep observed firm-pair flow history (8075 observations)
China · 3,543 observed flows
Mostly outbound - Observed flows point outward to partners
Deep observed firm-pair flow history (3543 observations)
China · 10,483 observed flows
Mostly outbound - Observed flows point outward to partners
Deep observed firm-pair flow history (10483 observations)
China · 5,222 observed flows
Mostly outbound - Observed flows point outward to partners
Deep observed firm-pair flow history (5222 observations)
China · 10,474 observed flows
Mostly outbound - Observed flows point outward to partners
Deep observed firm-pair flow history (10474 observations)