139
3. Grant of Patent License. Subject to the terms and conditions of this License,
each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-
charge, royalty-free, irrevocable (except as stated in this section) patent license to
make, have made, use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable by such Contribu-
tor that are necessarily infringed by their Contribution(s) alone or by combination of
their Contribution(s) with the Work to which such Contribution(s) was submitted. If
You institute patent litigation against any entity (including a cross-claim or coun-
terclaim in a lawsuit) alleging that the Work or a Contribution incorporated within
the Work constitutes direct or contributory patent infringement, then any patent
licenses granted to You under this License for that Work shall terminate as of the
date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the Work or Deriva-
tive Works thereof in any medium, with or without modifications, and in Source or
Object form, provided that You meet the following conditions:
(a) You must give any other recipients of the Work or Derivative Works a copy of this
License; and
(b) You must cause any modified files to carry prominent notices stating that You
changed the files; and
(c) You must retain, in the Source form of any Derivative Works that You distribute,
all copyright, patent, trademark, and attribution notices from the Source form of
the Work, excluding those notices that do not pertain to any part of the Derivative
Works; and
APL Apache License 2.0
