Li is a member of the State Bar of Texas and is registered to practice as a patent attorney before the United States Patent and Trademark Office.
Patents:
- US 6445597 B1, "Local loop control system for a multiple output power converter."
- US 6519166 B1, "Apparatus and method for controlled preload operation of an electrical converter."
- US 6693812 B1, "Bias supply selection circuit, method of operation thereof and power supply employing the same."
- US 7688046 B2, "Power converters having varied switching frequencies."
- US 7940118 B1, "Dying gasp charge controller."