What Are Legal Requirements of Patent Description?

When patent owner registers for their patent, one of the most important documents included in the dossiers is the patent’s description. Patent is a technical solution in the form of a product or process which is intended to solve a problem by application of natural laws. Patent description is very important which is aimed to reveal the nature of a patent for examiner to consider its ability if satisfying the protected conditions. Specifically, patent description must include the description and protection scope.

Register patent in Vietnam

The description must completely disclose the nature of the technical solution sought to be registered. It must contain sufficient information based on which any person with average skill in the art can deduce the solution and also clarify the novelty, inventive steps and susceptibility of industrial application of the technical solution.

The description includes the following contents:

-Title of the invention, which briefly expresses the object or objects sought to be registered and must be brief and must not be of a promoting or advertising purpose;

-Use field of the patent: the field in which the object is utilized or to which the object is relevant;

-Technical state of the use field of the patent: The technical state of the above mentioned file at the time of;

-Technical nature of the patent: The nature of the object, in which clearly state the signs (characteristics) featuring the object and clearly indicate the signs (characteristics) which is new to those of known similar technical solutions;

-Brief description of attached drawings (if any);

-Detailed description of invention operating variations;

-Detailed description of invention operating variations;

-Benefits (effects) expected to be achieved.

Protection scope or protection claim of the patent:

The protection scope is used for determination the scope of industrial property rights to patent. The protection scope must be presented briefly and clearly in conformity with the description and drawings, making clear signs of novelty of the object sought to be protected and comply with the following regulations:

-The protection scope (claim) must be adequately demonstrated by the description, including prerequisite and sufficient substantial technical signs to identify the object, achieve the set objective and distinguish the object from a known object;

-Technical signs within the protection scope (claim) must be clear, precise and recognizable in the similar art;

-The protection scope (claim) should not invoke the description and drawings, except for invocation to parts that cannot be accurately described with words;

-If the application contains drawings illustrating the protection claim, signs presented in the protection scope (claim) may be accompanied with indication numbers put in brackets. Those indication numbers are not considered confining the protection scope (claim).

-The protection scope (claim) should (is not required to) be expressed in two sections: Restriction and Distinction. The section Restriction covers the title of the object and signs of the object that are identical to those of the latest known object and is connected to the section Distinction by the phrase distinguishable by or characterized by or equivalent expressions. The section Distinction covers signs that distinguish the object from the latest known object and are combined with signs of the section Restriction to constitute the object of protection claim.

-The protection scope (claim) may include one or more than one points. A multi-point protection scope (claim) may be used to present an object sought to be protected, with the first point (called independent point) and subsequent point(s) used to concretize the independent point (called dependent point(s)); or to present a group of objects sought to be protected, with several independent points, each presenting an object sought to be protected in the group. Such an independent point may have dependent point(s);

-A multi-point protection scope (claim) used to present a group of objects must satisfy the following requirements: Independent points presenting different objects must not invoke other points of the protection scope(claim), unless the invocation helps avoid total repetition of the content of another point; dependent points must immediately follow the independent point on which they are dependent.

Besides the description and protection scope, the patent abstract is also a compelled part in the dossier for patent registration. Accordingly, the patent abstract is used to concisely describe (with no more than 150 words) the nature of the patent. The abstract must disclose principal details of the nature of the technical solution for the informatory purpose and may contain typical drawings or formulas.

If the client needs any other information or requires for further advice, our IP attorney in Vietnam at ANT Lawyers, the IP agent in Vietnam will be available for service.