I want to know the answer to the following question:
Who filed a patent for the field-effect transistor?
All the background I'm provided with is that "Because the production of high-quality semiconductor materials was still decades away, Lilienfeld's solid-state amplifier ideas would not have found practical use in the 1920s and 1930s, even if such a device had been built.". Is that enough to answer the question?
Answer: no