Proof of reduction to practice of an invention
June 28, 2008 1:15 pm ReferenceAccording to United States patent law, the reduction to practice is a concept meaning the embodiment of the concept of an invention. This can be very important if more than one inventor claims to be the original inventor. The date of this embodiment is critical to the determination of priority between inventors in an interference proceeding. One of the best pieces of evidence to prove reduction to practice of an invention would be a working model with evidence of when the model was created. Since a working model is no longer a requirement of the U.S. patent law, having one would really support your claim of originality.