1872-1880
In 1872, she developed a vacuum canning process for preserving food, with the help of Professor Leroy C. Cooley of Albany, who was connected by marriage with one of her sisters. The following year she obtained five patents relating to her process, of which two listed her as sole inventor. Again following the advice of the spirits she communicated with, she developed another invention, an oil burner, which she patented in 1880. However, her attempts to establish businesses based on her inventions were unsuccessful, and she returned to writing, publishing A Prairie Idyll in 1882.
Read more about this topic: Amanda Jones (inventor), Patents and Inventions