3.1 Unicode patent policy - Inclusion of Patents in Unicode
There is no objection in principle to drafting a Standard  in terms that include the use of an
patent claim (one whose use would be required for compliance with
that standard) if it is considered that technical reasons justify
If the Unicode Consortium receives a notice that a proposed
Standard or an approved Standard may require the use of such a patent
claim, the procedures in this clause
shall be followed.
from patent holder
The Consortium shall receive from the identified party or
patent holder (in a form approved by the Consortium) either:
- assurance in the form of a general disclaimer to the effect
that such party does not hold and does not currently intend
holding any essential patent claims; or
- assurance that a license to such essential patent claim(s)
will be made available to applicants desiring to utilize the
license for the purpose of implementing the Standard either:
(i) under reasonable terms and conditions that are demonstrably
free of any unfair discrimination; or
(ii) without compensation and under reasonable terms and
conditions that are demonstrably free of unfair discrimination.
3.1.2 Record of statement
A record of the patent holder’s statement shall be placed and
retained in the files of the Consortium.
When the Consortium receives from a patent holder the assurance
set forth in 3.1.1 b) above, the Standard shall include a note
substantially as follows:
NOTE – The user’s attention is called to the possibility that
compliance with this Standard may require use of an invention
covered by patent rights.
By publication of this Standard, no position is taken with
respect to the validity of any such claim(s) or of any patent rights in
connection therewith. If a patent holder has filed a
statement of willingness to grant a license under these rights
on reasonable and nondiscriminatory terms and conditions to
applicants desiring to obtain such a license, then details may be
obtained from the Unicode Consortium.
3.1.4 Responsibility for identifying patents
The Consortium is not responsible for identifying all
patents for which a license may be required by a Standard or for
conducting inquiries into the legal validity or scope of those
patents that are brought to its attention.
"Standard" in this context refers to a version of a Unicode
Technical Report, a Unicode Technical Standard, or the Unicode
Standard and its annexes.