http://st-www.cs.uiuc.edu/users/johnson Ralph is interested in all kinds of patterns.
List of papers computed by ACM: http://portal.acm.org/author_page.cfm?id=81330492373&CFID=71067567&CFTOKEN=94878873
Ralph has been an active contributor to this site. As with many of the early Wikizens, he is busy in other ways and does not visit here often. We thank Ralph for his contributions none the less. -- WardCunningham
2005-July-30: ACM's Special Interest Group on Programming Languages (SIGPLAN) recently awarded the 2005 Programming Languages Achievement Award to ErichGamma, RichardHelm, Ralph Johnson, and JohnVlissides (known as the GangOfFour) for their creation of the DesignPatternsBook.