From the USPTO event page:
„The Silicon Valley USPTO is hosting its monthly patent brown bag lunch and learn session in its San Jose office, from noon to 1:00 p.m. A supervisory patent examiner will give an overview of the patent system and answer general patent questions during a live information session. This session is designed for inventors, entrepreneurs, and those who would like to learn more about the patent system and have a beginning to intermediate knowledge of the patent system. This event is free and open to the public. Please bring your own lunch to enjoy during the session, lunch is not provided.

Please note that the Silicon Valley USPTO is a federal facility. You will be required to show a valid form of government issued ID (driver’s license, passport), and may be subject to screening.“