Article (8) of the Sudanese law provides the restrictions on registration
which they are:
(1) The following cannot be validly registered as trademarks:
a) Marks which consist of shapes or forms imposed by the inherent nature of the goods or by their industrial function.
b) Marks which consist exclusively of a sign or indication which may serve, in the course of trade to designate any particularity, such as quality, quantity, purpose, value, and place of origin.
c) Marks, which have become, in the current language or in the bonafide and established practices of the trade of the country, a customary designation of the goods concerned.
d) Marks that are contrary to morality or public order and which, in particular, are calculated to deceive or confuse trade circles or the public as to the nature, the source, the manufacturing process, the characteristics, or the suitability for their
purpose, of the concern of the good.
e) Marks that reproduce or imitate armorial bearings, flags, and other emblems, initials, names, or abbreviations of names of any state or of any intergovernmental international organization or any organization created by an international
convention, unless authorized by the competent authority of that state or international organization.
f) Marks that reproduce or imitate official signs or Hallmarks adopted by a State unless authorized by the competent authority of that State.
g) Marks identical with or similar to emblems of exclusively religious, sectarian, or tribal organization.
h) Marks that resemble or depict the portrait of a religious or tribal leader or of any sectarian significance.
(2) Except with the consent of the interested third party the following marks are not registerable:
a) Marks that resemble, in such a way as to be likely to mislead the public, a mark already validly filed or registered by a person validly claiming priority, in respect of the same goods, or of other goods in connection with
which use of such marks might be likely to mislead the public.
b) Marks that constitute a reproduction, in whole or in part, an imitation, a translation, or a transcription, likely to mislead the public, a mark that is well known in the country and belongs to a third party.
c) Marks that infringe other third-party rights or are contrary to the rules for the prevention of unfair competition.