Red flags by type
Patents recorded as loan collateral (security interest)
IP_SECURITY_INTEREST_RECORDED · 86158 public events
Bulk patent portfolio assigned out
PORTFOLIO_ASSIGNMENT_OUT · 0 public events
Patent allowed to expire (maintenance fee not paid)
PATENT_MAINTENANCE_LAPSE · 0 public events
PTAB validity challenge filed against the entity's patents
PTAB_CHALLENGE_FILED · 0 public events
Cluster of patent applications abandoned in a short window
APPLICATION_ABANDONMENT_CLUSTER · 0 public events
Patent-filing velocity dropped sharply vs the entity's own baseline
FILING_RATE_DROP · 0 public events
Key inventors departed to another assignee (inventor exodus)
INVENTOR_EXODUS · 0 public events
Cluster of §101 subject-matter-eligibility rejections
101_REJECTION_CLUSTER · 0 public events
Continuation churn — high refiling with low grant yield
CONTINUATION_CHURN · 0 public events
Trademark application abandoned
TM_ABANDONMENT · 0 public events
TTAB opposition/cancellation filed against the mark owner
TTAB_OPPOSITION · 0 public events
Registered trademark lapsed (§8/§9 maintenance not filed)
TM_MAINTENANCE_LAPSE · 0 public events