From 1976 till 1983 he was the founding director of the Ellen G. White/Seventh-day Adventist Research Centre, located within the Avondale College library and jointly funded by the South Pacific Division of the Adventist church and the Ellen G. White Estate.
Patrick graduated with a Master of Letters (MLitt: Themes in the History of Women and Family) from the University of New England in Australia during 1984, and a Doctor of Philosophy (PhD) from the University of Newcastle, Australia, in 1992.
From 1992 till 1996 Patrick was the senior chaplain at the Sydney Adventist Hospital. During the following two academic years he was a visiting associate professor at La Sierra University in Southern California, teaching church history and pastoral ministry.
Patrick's writings attempt, in particular, to survey Adventist Studies (including study of the life and writings of Ellen Gould White, 1827–1915). This field of research, he claims, is maturing as an academic discipline.
Patrick officially retired in 1998, but has since served as chair of the Professional Standards Committee for the South Pacific Division; chair of Women in Ministry, Incorporated; and as a research fellow at Avondale College. He is active in writing and publishing and will be a presenter at the 50th Anniversary Conference on the book Questions on Doctrine, to be held at Andrews University from October 24–27, 2007.