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Administrative Judge
U.S. Patent and Trademark Office


HUNG H. BUI currently serves as an Administrative Patent Judge (APJ) at the Patent Trial and Appeal Board (PTAB) of the U.S. Patent & Trademark Office (USPTO) since 2012.  Judge Bui is a graduate of the Washington College of Law, American University in 1994 and Drexel University in 1990 where he earned a BS degree in Electrical and Computer Engineering with a minor in International Affairs.  At PTAB, Judge Bui conducts post-grant patent trials including trial proceedings in legacy interferences, and adjudicates ex parte and reexamination appeals.

Prior to public service, Judge Bui was a partner at Antonelli, Terry, Stout & Kraus LLP, and then a founding partner at Stein, McEwen & Bui LLP.  His practice included developing patent portfolios, drafting opinions regarding validity and infringement, litigation, and licensing.

Active in his community, Judge Bui has led the development of several community-based, non-profit organizations that promote the interests of Asian Americans in the Washington DC metropolitan area.  Judge Bui was a founding co-Chair and served as Chair of the Board of Directors of Asian American LEAD, a non-profit community-based organization dedicated to nurture and develop Asian American youths from low-income families in Washington DC from 1998–2005. Judge Bui also served as General Counsel/Board member of the Vietnamese American Society from 1994–2002, the Asian Pacific American Bar Association of the Greater Washington DC from 2002–2003, MOSAICA (The Center for Nonprofit Development and Pluralism) from 2005–2012, and provided a wide variety of pro bono legal services and representations for low-income Asian Americans in various proceedings.

Similar to his early involvement with Asian American LEAD which helped Amerasians to settle in Washington DC metro area a few decades ago, Judge Bui hopes Amerasian Heritage Quest (a.k.a., “Tim Lai”) offers Amerasians of the Vietnam War era—both in the United States and in Vietnam, the opportunities to find their family and heritage and help their families unite and build meaningful communities.

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