Below is a list of the composers and one of their most significant compositions that utilized piano extended techniques
Henry Cowell - "The Banshee" (1925)
John Cage - "Sonatas and Interludes" (1946-1948)
Christian Wolff - "For Prepared Piano I" (1951)
Karlheinz Stockhausen - "Klavierstück X" (1955)
Ben Johnson - " Knocking Piece for Piano Interior (1962)
Roger Reynold - "Fantasy for Pianist" (1963-64)
Sofia Gubaidulina - "Sonata" (1965)
Luciano Berio - "Sequenza IV" (1966)
Lawrence Moss - "Omaggio for One Piano, Four Hands" (1966)
Helmut Lachenmann - "Guero" (1969)
George Crumb - "Makrokosmos" (1972-1979)
Curtis Curtis-Smith - "Rhapsodies" (1973)
Arthur Greene - "Seven Wild Mushrooms and a Waltz" (1976)
Emma Lou Diemer - "Toccata for Piano" (1979)
William Bolcom - "No. 5: Butterflies, hummingbirds, from the 12 New Etudes for Piano" (1986)
Stephan Scott - "Vikings of the Sunrise" (1994)
Jennifer Higdon - "String Poetic" (2006)