key: ms-patent-promise-mono
short_name: Microsoft Patent Promise for Mono
name: Microsoft Patent Promise for Mono
category: Patent License
owner: Microsoft
homepage_url: https://www.mono-project.com/docs/faq/licensing/
spdx_license_key: LicenseRef-scancode-ms-patent-promise-mono
text_urls:
  - https://github.com/mono/mono/blob/main/PATENTS.TXT
text: |
  Microsoft Patent Promise for Mono

  Microsoft Corporation and its affiliates (“Microsoft”) promise not to
  assert any Applicable Patents against you for making, using, selling,
  offering for sale, importing, or distributing Mono.

  If you file, maintain, or voluntarily participate in any claim in a
  lawsuit alleging direct or contributory patent infringement by Mono,
  or inducement of patent infringement by Mono, then your rights under
  this promise will automatically terminate.

  This promise is not an assurance that (i) any Applicable Patents are
  valid or enforceable or (ii) Mono does not infringe patents or other
  intellectual property rights of any third party. No rights except
  those expressly stated in this promise are granted, waived or received
  by Microsoft, whether by implication, exhaustion, estoppel or
  otherwise. This is a personal promise directly from Microsoft to you,
  and you agree as a condition of benefitting from it that no Microsoft
  rights are received from suppliers, distributors, or otherwise in
  connection with this promise.

  Definitions:

  “Mono” means those portions of the software development technology, as
  originally distributed by Xamarin, Inc. or the .NET Foundation under
  the name “Mono,” that implement .NET Framework Functionality, provided
  that such portions at a minimum implement all of the required parts of
  the mandatory provisions of Standard ECMA-335 – Common Language
  Infrastructure (CLI).

  “.NET Framework Functionality” means any functionality in Microsoft’s
  .NET Framework as described in Microsoft’s API documentation on
  Microsoft’s MSDN website, including the functionality in
  Windowsbase.dll, but excluding all other functionality in the Windows
  Presentation Foundation component of .NET Framework.

  “Applicable Patents” are those patent claims, currently owned by
  Microsoft and acquired in the future, that are necessarily infringed
  by Mono. For clarity, Applicable Patents do not include any patent
  claims that are infringed (x) by any underlying or enabling technology
  that may be used, combined, or distributed in connection with Mono
  (such as hardware, operating systems, or applications that run on
  Mono), (y) only as a consequence of modification of Mono, or (z) only
  by the combination of Mono with third party code.