Patents and patent applications
Last updated: May 1, 2026
CAI-AUTH and CAI-Vault are protected by one or more patents and patent applications filed with OSIM (Romania), EPO (Europe), USPTO (United States) and other jurisdictions. The current status of each application is listed below. Intellectual property inquiries may be sent to ip@caitech.ro.
Areas of coverage
Our patent applications cover, without limitation, the following inventive areas:
CAI-AUTH (Cipher AI Authenticator)
- Hybrid post-quantum authentication with composite signatures
- Push-to-approve with end-to-end hybrid cryptographic signature
- WebAuthn/FIDO2 adaptation for post-quantum algorithms
- Encrypted backup with hybrid post-quantum key derivation
- Tamper-evident audit chain
- Distributed threshold recovery with a mandatory delay window
- Hardware binding of cryptographic material via secure enclaves
CAI-Vault (Digital Identity Wallet)
- EUDI ARF v2 conformant identity wallet with hybrid post-quantum binding
- Hybrid post-quantum at-rest store encryption resistant to harvest-now-decrypt-later
- Standards-based selective disclosure with per-attribute biometric consent
- Backward-compatible post-quantum adapter for standard verifiable-credential protocols
- Conflict-free cross-device synchronization over a hybrid post-quantum tunnel
- Viewer-side anti-exfiltration with cryptographic commitment to the holder's audit chain
- Threshold inheritance with hardware-attested guardian devices
Application status
The table below will be updated as official application numbers are assigned.
| Product | Jurisdiction | No. | Filing date | Status |
|---|---|---|---|---|
| CAI-AUTH | OSIM (RO) | — | In progress (May 2026) | Patent Pending |
| CAI-AUTH | EPO (EU) | — | In progress (May 2026) | Patent Pending |
| CAI-AUTH | USPTO (US) | — | In progress (May 2026) | Patent Pending |
| CAI-Vault | OSIM (RO) | — | Planned | Patent Pending |
| CAI-Vault | EPO (EU) | — | Planned | Patent Pending |
| CAI-Vault | USPTO (US) | — | Planned | Patent Pending |
Virtual patent marking
This page constitutes a virtual patent marking under 35 U.S.C. § 287(a) (United States) and equivalent rules in other jurisdictions. Public notice of pending patent applications serves to establish the period for calculating damages in the event of infringement.
Licensing and use
The technologies covered by these patents are available under a commercial licence from CAI Technology S.R.L. For licensing, OEM integration or technology partnership inquiries, contact sales@caitech.ro. The open-source components of CAI-AUTH and CAI-Vault remain available under their declared public licences. Those licences do not grant any licence to the patents listed above beyond what is explicitly provided in their text (see AGPL-3.0 §11 or equivalent).
Frequently asked questions
May I use these technologies in my products?
For commercial use or integration into other products, contact sales@caitech.ro to discuss licensing terms. Using CAI-AUTH as an end user (for example, downloading the APK for personal authentication) does not require any additional patent licence.
Why aren't the technical details of the patents shown here?
The full technical details are part of our confidential filings with the patent offices. They become public when the offices publish the applications (typically 18 months after filing) or when the patents are granted.
How do I report an intellectual property concern?
For any question regarding intellectual property, usage rights or alleged infringement, contact ip@caitech.ro.
Legal identity
CAI TECHNOLOGY S.R.L.
VAT/CUI: 50512457 · Trade Register: J2024020380005 · EUID: ROONRC.J2024020380005
Registered office: Str. Victor Brauner 34, Bucharest, Romania