17.04.08
Open Source Licensing based on Patents rather than Copyright
This is a very interesting proposal by Larry Rosen and Fred Popowich as explained in an interview on linux.com.
The consequences are interesting, particularly regarding dual licensing. One of the issues (whether it is a problem or a benefit depends on your point of view) regarding dual licensing is that the original licensor cannot embrace code from an external contributor, even if that code is available under the original license, and distribute it both under the original license and under the other, presumably proprietary, license. This is due to the original work of that external contributor being also covered by copyright, unless that contributor voluntarily and explicitly grants the right to re-license the contribution. This does not happen with patents, since the external contribution does not necessarily include any patented aspects.
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