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A "contributor" is a copyright holder who authorizes use under this License of the Program or a work on which the
Program is based. The work thus licensed is called the contributor's "contributor version".
A contributor's "essential patent claims" are all patent claims owned or controlled by the contributor, whether already
acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or
selling its contributor version, but do not include claims that would be infringed only as a consequence of further
modification of the contributor version. For purposes of this definition, "control" includes the right to grant patent
sublicenses in a manner consistent with the requirements of this License.
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patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its
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In the following three paragraphs, a "patent license" is any express agreement or commitment, however denominated,
not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent
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enforce a patent against the party.
If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not
available for anyone to copy, free of charge and under the terms of this License, through a publicly available network
server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available,
or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner
consistent with the requirements of this License, to extend the patent license to downstream recipients. "Knowingly
relying" means you have actual knowledge that, but for the patent license, your conveying the covered work in a country,
or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country
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A patent license is "discriminatory" if it does not include within the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are specifically granted under this License. You may
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software, under which you make payment to the third party based on the extent of your activity of conveying the work,
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those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work,
unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement
that may otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this
License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy
simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may
not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from
those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to
refrain entirely from conveying the Program.
13. Use with the GNU Affero General Public License.