Ambrose Godfrey-Hanckwitz FRS (1660 – 15 January 1741), also known as Gottfried Hankwitz, also written Hanckewitz, or Ambrose Godfrey[1][2] as he preferred to be known, was a German-born British phosphorus manufacturer and apothecary.[3] He was one of the first phosphorus manufacturers and was one of the best and most successful in his time. He invented and patented a machine that acted as a fire extinguisher.[4]