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on 10/18/2006 10:00 PM Ludwik Kowalski said the following:
This thread made me think about a hypothetical situation with a car. An inventor bought a car and then invented something to improve performance. He adds this gadget to the existing structure and drives a better car. Is he violating a patent law?
No ... unless his improvement is a re-invention of something covered
by another patent.
Indeed a big part of the rationale for having patent laws at all
is to encourage refinements and further improvements.
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