As I described in the first two parts of this series, there are a number of ways in which the “on sale” bar can cost the unwitting inventor dearly. Hence, lastly, I would like to highlight some of the exceptions that can be...more
In part 1 of this series, I introduced the “on sale bar” and described how a commercial sale or offer for sale can negate patentability, according to the doctrine the Supreme Court established in Pfaff v. Wells Elecs., Inc....more