Patterson resumed the practice of law in
Costa Mesa in 1986. He was a professor at
California State University, Long Beach from 1986 to 1999. He became the
city attorney of
Cypress in 1987, Dana Point, California in 1989 and Lake Forest, California in 1991. Patterson retired from his law practice in 1997 and has been president of his own public affairs consulting firm since 1998. Patterson continued to be an educator, community activist and member of nonprofit boards and commissions.
Local public office In 1996 Patterson returned to elective office when he won a seat on the
Coast Community College District Board of Trustees where he served on the college board for
Orange Coast College,
Golden West College and
Coastline Community College. During his time on the Santa Ana Council, Patterson led the effort to establish a federal courthouse in the community, make improvements to the regional transportation system, and enclose the
Santa Ana River. ==Personal life and death==