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Re: [Phys-l] Patent laws [was Video Encyclopedia of Physics Demos (ownership)]

From: John Denker <jsd@av8n.com>
Date: Wed, 18 Oct 2006 22:20:37 -0400

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.

Follow-Ups:
- Re: [Phys-l] Patent laws [was Video Encyclopedia of Physics Demos (ownership)]
  - From: Jack Uretsky <jlu@hep.anl.gov>
- Re: [Phys-l] Patent laws [was Video Encyclopedia of Physics Demos (ownership)]
  - From: "John Clement" <clement@hal-pc.org>
- Re: [Phys-l] Patent laws [was Video Encyclopedia of Physics Demos (ownership)]
  - From: Bernard Cleyet <bernardcleyet@redshift.com>

References:
- Re: [Phys-l] Video Encyclopedia of Physics Demos (ownership)
  - From: "Rauber, Joel" <Joel.Rauber@SDSTATE.EDU>
- Re: [Phys-l] Video Encyclopedia of Physics Demos (ownership)
  - From: Hugh Haskell <hhaskell@mindspring.com>
- [Phys-l] Patent laws [was Video Encyclopedia of Physics Demos (ownership)]
  - From: Ludwik Kowalski <kowalskil@mail.montclair.edu>

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