Jed wrote: "Anyone who uses a patented technology must pay royalties. It
makes no
difference whether you previously had an agreement with the inventor or
not."
It is only too easy to fight an "improved" patent. The patent fight
destroyed the Wright Bros.
"The Wrights' preoccupation with the legal issue hindered their
development of new aircraft designs, and by 1910 Wright aircraft were
inferior to those made by other firms in Europe.[11] Indeed, aviation
development in the U.S. was suppressed to such an extent that when the
country entered World War I no acceptable American-designed aircraft
were available, and U.S. forces were compelled to use French machines.
In January 1914, a U.S. Circuit Court of Appeals upheld the verdict in
favor of the Wrights against the Curtiss company, which continued to
avoid penalties through legal tactics."