What American patent attorney visited John Shaw Crout in 1944?
John Crout John Shaw Crout (July 5, 1899 - October 31, 1987) was the Director of Engineering at Battelle Memorial Institute when, in 1944, Battelle was visited by Chester Carlson, in order to obtain support for his idea about a xerographic process.
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.