ClientServerPatterns are patterns that arise primarily in the design and implementation of client-server architectures. Armchair analysis suggests that there is a pattern language here. But the first step must be to list the patterns ....
There are at least three examples on wiki that cover this ground:
PatternsOfClientServerArchitectures
Books: PatternOrientedSoftwareArchitecture
Web Pages: http://www.cs.wustl.edu/~schmidt/patterns.html
See Also: ApplicationPatterns.