Hans Welling was responsible for some of the most sophisticated output of several of the best post-war German art-pottery manufacturers—Keto, Ruscha, and Ceramano among them. He served as Ceramano's artistic director for a period of time (1959-1961) but otherwise little is recorded about him or his relationships with these firms. Many famous Ceramano shapes and decors are ascribed to him: 'Pergamon,' 'Koralle,' 'Minerva,' 'Ceralux,' 'Tundra.' Welling also designed tableware and collectibles for Goebel Porzellan.
Hans Welling used wax resist and sgraffito motifs, experimental "fat lava" volcanic surface glazing with lush colors, applied "knob" patterns, as well as dusty and encrusted finishes in an attempt to appear as if discovered in an archeological site. His range was vast and his experimenting with surfaces and glazing incredibly interesting.