In 1952, Deringer partnered with Alfred Gleiss in a law firm that is now Gleiss Lutz. He left the firm in 1961, and partnered with Claus Tessin in Bonn. The firm, later known as Deringer Tessin Herrmann & Sedemund, merged with Freshfields and Bruckhaus Westrick Heller Loeber to form Freshfields Bruckhaus Deringer in 2000.
- "Freshfields mourns death of German co-founder Arved Deringer". The Lawyer. 26 October 2011. Retrieved 5 November 2011.
- "Freshfields mourns loss of name partner Arved Deringer". LegalWeek.com. 26 October 2011.
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