What American patent attorney visited John Shaw Crout in 1944?
Chester Carlson Chester Floyd Carlson (February 8, 1906 – September 19, 1968) was an American physicist, inventor, and patent attorney born in Seattle, Washington.
Hotchkiss v. Greenwood Hotchkiss v. Greenwood, 52 U.S. (11 How.) 248 (1850), was a United States Supreme Court decision credited with introducing into United States patent law the concept of non-obviousness as a patentability requirement, as well as stating the applicable legal standard for determining its presence or absence in a claimed invention.