Thank you, complex issue! Difficult to find valid analogies with the present case- that is developing step by step.
On Tue, Feb 8, 2011 at 1:28 PM, Jed Rothwell <jedrothw...@gmail.com> wrote: > Peter Gluck <peter.gl...@gmail.com> wrote: > > Jed you are a good historian too...in which extent was the airplane >> patented? > > > It was patented in 1906. The legal battles over the patent exhausted Wilbur > Wright and contributed to his death in 1912 at age 45. See: > > http://www.centennialofflight.gov/essay/Wright_Bros/Patent_Battles/WR12.htm > > > http://invention.psychology.msstate.edu/i/Wrights/WrightUSPatent/WrightPatent.html > > The patent covers only the control system, not the motor or propellers. > The propellers were the most difficult component to engineer. > > - Jed > >
