Blockstream Patents

Patent portfolio assigned to Blockstream (verified via public assignee records). Estimated patent count: 5. Bitcoin/digital-asset infrastructure company (Canada). Competitors from CB Insights. No named paying customers found on company site (B2B/open-source infra; offers patents under Defensive Patent License). Patents confirmed via Google Patents: US20160330034A1 (pegged sidechains) and US11080665B1 assigned to Blockstream Corporation; CB Insights reports ~5 patents.