Its worth putting things into perspective. In 1917 after the initial paperwork had been signed, the Fokker company was a big deal, with production facilities and government contracts and access to resources to maintain continuity. Junkers was small potatoes. A research building on an airfield, certainly not with access to resources or government contracts. Fokker didn't need Junkers, but Junkers needed Fokker to step into the big time and get government contracts. Factories don't spring from nothing and Fokker had the knowhow. Fokker wanted what Junkers had patented and used it.