Robreno received his Bachelor of Arts degree from Westfield State College in 1967, a Master of Arts from University of Massachusetts Amherst in 1969 and his Juris Doctor from Rutgers School of Law–Camden in 1978.

He served as an attorney for the Antitrust Division of the United States Department of Justice in Philadelphia, from 1978 to 1981.

[1] Robreno was nominated by President George H. W. Bush on November 26, 1991, to a seat vacated by Judge Louis H. Pollak.

[1] Robreno was the third judge to manage the massive multidistrict litigation of over 10,000 federal asbestos claims.

These claims were all individually transferred over nearly two decades from local state courts on a variety of grounds, and Robreno has been praised for allowing many cases to go forward and have other dormant cases dismissed.