[1] At the close of the World War II, Manfred von Ardenne, director of his self-funded "Research Laboratory for Election Physic,[8] Gustav Hertz, Nobel laureate and director of Research Laboratory II at Siemens, Peter Adolf Thiessen, ordinarius professor at the University of Berlin, and Max Volmer, ordinarius professor of chemistry at the Technical University of Berlin, had made a pact.

The objectives of their pact were threefold: (1) Prevent plunder of their institutes, (2) Continue their work with minimal interruption, and (3) Protect themselves from prosecution for any political acts of the past.

Hertz was made head of Institute G, in Agudseri (Agudzery),[12][13] about 10 km southeast of Sukhumi and a suburb of Gul’rips (Gulrip’shi).

[22] In Institute A, Thiessen became leader for developing techniques for manufacturing porous barriers for isotope separation, primarily using the gaseous diffusion.

Additionally, in 1954, in preparation sending the German scientists to Germany, the German government and the Soviet authorities prepared a list of scientists they wished to keep in the East Germany, due to their having worked on projects related to the Soviet nuclear program; this list was known as the "A-list".

[6][27] From 1969 until his retirement in 1974, Mühlenpfordt was director of the Research Division for Nuclear and Isotope Technology of the German Academy of Sciences.

[6][7] In 1993, Mühlenpfordt joined the Leibniz Society of Sciences where devoted his research interest in improvement of television and investigating methods of earthquake prediction.