Originally, Klaus was influenced by his elder brother Hans with whom he worked for a number of years in Frankfurt, Germany. The 1968 move to America liberated him from the constraints of middle class German society. It was in Chicago where he invented new forms with the cube at the center. Based on the cube, he created numerous sculptures in stone, wood and painted plywood. His work was recognized by the Chicago Art Institute and Skidmore Owings and Merrill, the leading architectural firm in Chicago. Companies like Baxter Lab and Quaker Oats bought some of his sculptures for their art collection.
The first website was created in the year 2000 for the sculptor's 65th birthday.