KETS Quantum Security Patents

Patent portfolio assigned to KETS Quantum Security (verified via public assignee records). UK (Bristol) chip-scale QKD/quantum-safe hardware. Nokia and CryptoNext confirmed as partners on own site; no paying customers named publicly. Patents confirmed (assignee KETS Quantum Security Ltd, e.g. US11316675, US11689360B2, WO2016142701 chip-based QKD); exact count not visible (Justia/Google Patents blocked at fetch time).