section_path: Research and development/Emanuel M. Greenberg (USA)
section_name: Emanuel M. Greenberg (USA)
paragraph_text: Emanuel M. Greenberg (USA)
  
  Emanuel M. Greenberg wrote various papers on the topic of the artificial womb and its potential use in the future.
  
  On 22 July 1954 Emanuel M. Greenberg filed a patent on the design for an artificial womb. The patent included two images of the design for an artificial womb. The design itself included a tank to place the fetus filled with amniotic fluid, a machine connecting to the umbilical cord, blood pumps, an artificial kidney, and a water heater. He was granted the patent on 15 November 1955.