Apache revokes your rights under the patent section of the license if you sue anyone for patents granted under said license:

> If You institute patent litigation against any entity (including a cross-claim or counterclaim 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.

Note that the "Grant of Copyright License" of Apache doesn't grant you the right to use the work, so revoking the patent license is effectively revoking the whole license (though you can still redistribute the work).