Pat began playing professionally in 1961. He has performed with a wide variety of artists including Sonny Stitt, Gene Ammons, Richard Groove Holmes, John Handy, Bobby Hutcherson, Chick Corea, Jack McDuff, Don Patterson, Stanley Clark, Eric Kloss, Trudy Pitts, Willis Jackson, Lloyd Price, Woody Herman, Chuck Israels, Charles Earland, Barry Miles and Joe Pesci. Since 1967, Pat has been touring as a leader.
He has been a Recording Artist for Vanguard, Prestige, Warner Brothers, Muse, Columbia, King, Paddlewheel, Evidence, Sony, 32 Jazz, High Note, Milestone, Polydor, Concord, Fantasy, House of Blues, Mythos, Mainstream, Cobblestone, Atlantic and, most currently, Blue Note Records.