Leading German producer Martin Moszkowicz has teamed up with Philipp Keel , the owner of Europe’s largest independent fiction publisher, Diogenes , and a filmmaker in his own right, to adapt titles from Diogenes’ catalog. Among Diogenes’ authors whose works have been adapted in the past are Patricia Highsmith (“Ripley,” “Carol”), Patrick Süskind (“Perfume”) and Bernhard Schlink (“The Reader”). “We’re actively negotiating roughly a dozen properties — some already set up, others at earlier stages. The pipeline reflects the depth of the Diogenes catalog,” Moszkowicz told Variety . ”In a market drowning in synthetic content, the human authorial voice is the premium asset — and Diogenes happens to sit on one of the densest reserves of it in the world.” Keel added, “We are at the beginning of this adventure, and I couldn’t be more grateful to have a partner with such experience and dedication.…