Unified Patents plans to release charted prior art on Bunker Hill patents weekly until its assertion of invalid patents ceases. With the four patents below, Unified has released eight total charts within the last few weeks.

Using Pearl, we have successfully identified and charted prior art against patents owned by Bunker Hill, an NPE and entity of Dominion Harbor Enterprises. U.S. Patent 7,446,797 generally focuses on a surveillance system optimization method based on user-defined environmental characterizations. U.S. Patent 9,809,121 generally focuses on charging and power management involving a bi-directional buck/boost converter connected to a battery. U.S. Patent 7,723,932 generally outlines a propulsion system for vehicles. U.S. Patent 7,960,857 generally pertains to a vehicle-based uninterruptible power supply (UPS) system.

Identified Prior Art on U.S. Patent 7,446,797 (click to download chart)

Identified Prior Art on U.S. Patent 9,809,121 (click to download chart)

Identified Prior Art on U.S. Patent 7,723,932 (click to download chart)

Identified Prior Art on U.S. Patent 7,960,857 (click to download chart)