He began to have his designs produced in Kandern from 1897, when Art Nouveau was already the dominant style trend, and continued to use the pottery there until 1914.

By 1898 his pieces were on sale at the Paris shop of Siegfried Bing, "Maison de l'Art Nouveau" ("House of New Art"), which had given the movement its name.

Later his works were sold at the German critic Julius Meier-Graefe's competitive gallery in Paris, La Maison Moderne (1897–1903).

[7][8] In 1916 he took over the former premises of the Staatliche Majolika Manufaktur Karlsruhe to create his own pottery atelier; this was destroyed by Allied bombing in 1944,[9] after which (at the age of 80) he returned to Lörrach for his remaining years.

Perhaps his major commission was for the huge villa Het Kareol, allegedly the largest private house built in the Netherlands in the 20th century, demolished in 1979, though some fragments survive.

After a period of tussling between several figures, including some very underhand dealing by the young Leberecht Migge, a compromise scheme was adopted, which pleased nobody.

[12] From 1922 to 1925 he worked on the existing Wasserkunstanlage Paradies ("Paradise water-garden"), also in Baden-Baden, notably adding a sloping cascade of water in a sinuous Art Nouveau style.