Hong Kong Regulations

PATENTS (GENERAL) RULES - SECT 61

The abstract

(1) The abstract shall commence with a title for the invention.

(2) The abstract shall contain a concise summary of the matter contained in
the specification; the summary shall indicate the technical field to which the
invention belongs and be drafted in a way which allows a clear understanding
of the technical problem to which the invention relates, the gist of the
solution to that problem through the invention and the principal use or uses
of the invention; where appropriate, the abstract shall also contain the
chemical formula which, among those contained in the specification, best
characterizes the invention; and the abstract shall not contain statements on
the alleged merits or value of the invention or on its speculative
application.

(3) The abstract shall normally not contain more than 150 words or 200 Chinese
characters as appropriate;

(4) If the specification contains any drawings, the applicant shall indicate
on the abstract the figure or, exceptionally, the figures of the drawings
which he suggests should accompany the abstract when published; the Registrar
may decide to publish one or more other figures if he consider that they
better characterize the invention; and each main feature mentioned in the
abstract and illustrated by a drawing shall be followed by the reference sign
used in that drawing, placed between parentheses.