Signal Advance (OTCID: SIGL) Converts Rare 3-month U.S. Patent Victory for Analog Guard(R) into Rapidly Expanding Global IP Portfolio - As Quantum Threats Escalate Amid Large-Scale Collaborations

A U.S. continuation application to broaden and harden claims around the core Analog Guard mechanism - the timing-synchronized, analog-key-modulated dynamic carrier mixed with the message signal. ROSHARON, TX / ACCESS Newswire / December 10, 2025 / Signal Advance, Inc. (OTCID: SIGL) today highlighted its ®Analog Guard physics-based post-quantum encryption platform following a fast-track U.S. patent allowance, solidifying the company at the forefront of defenses against emerging quantum-era and AI-enabled cyb ...