Who is eligible for patent?

Who is eligible for patent


A patent is a legal right granted to inventors by a government authority that provides exclusive rights to the inventor over their invention for a limited period. It is a form of intellectual property protection that allows inventors to prevent others from making, using, selling, or importing their invention without permission. Patents are granted in recognition of the inventiveness and contribution of the inventor to the progress of science, technology, and society.

A patent provides the inventor with the right to exclude others from exploiting their invention for a specified period, typically 20 years from the filing date of the patent application.

During this period, the inventor has the exclusive right to manufacture, use, sell, or license the patented invention. This exclusivity gives inventors the opportunity to recover their investment in research and development, incentivizes innovation, and encourages the disclosure of new inventions to the public.

Who is eligible for patent?

Eligibility for a patent registration in Chennai varies from country to country, but in general, there are common criteria that inventors must meet to be eligible for a patent.


One of the fundamental requirements for patent eligibility is that the invention must be novel. This means that the invention must be new and not publicly disclosed or known before the filing date of the patent application.

The inventor must be able to demonstrate that their invention is different from existing inventions and that it has not been previously disclosed in any form, such as in publications, public demonstrations, or prior patents.

Inventive Step (Non-Obviousness):

The invention must involve an inventive step, also known as non-obviousness. This means that the invention must not be an obvious improvement or combination of existing knowledge or technology.

It should involve a level of creativity and ingenuity that would not be obvious to a person skilled in the relevant field. The inventive step requirement ensures that patents are granted for truly innovative and ground-breaking inventions, rather than incremental improvements.

Industrial Applicability:

To be eligible for a patent registration, the invention must be capable of industrial application. This means that the invention must have a practical use or be capable of being made or used in some form of industry. The invention should not be purely theoretical or abstract but should have a specific and tangible application that can be reproduced or implemented.

Subject Matter:

The subject matter of the invention should fall within the categories that are eligible for patent protection. In general, patent law allows for the protection of inventions in various fields, including but not limited to:

  • Utility Patents:

Utility patents after getting patent registration cover new and useful processes, machines, manufactures, or compositions of matter. These are the most common type of patents and include inventions in fields such as technology, engineering, chemistry, pharmaceuticals, and manufacturing.

  • Design Patents:

Design patents protect the ornamental or aesthetic aspects of a product’s design. They are granted for new, original, and ornamental designs for an article of manufacture.

  • Plant Patents:

Plant patent registration are granted for new and distinct varieties of plants that are asexually reproduced, such as through grafting or cutting. The plant must be novel, non-obvious, and have a new combination of characteristics that distinguish it from existing plants.

It is important to note that certain subject matters may be excluded from patent protection, such as abstract ideas, laws of nature, natural phenomena, and mathematical algorithms. Each jurisdiction has its own specific guidelines and limitations regarding subject matter eligibility.


To be eligible for a patent registration, the invention must be the result of the inventive efforts of one or more individuals. The individuals who contribute to the conception and development of the invention are considered the inventors.

Inventorship is determined based on the contribution to the inventive concept and not necessarily on the ownership of the invention. All inventors must be named in the patent application, and their contributions must be disclosed.

Disclosure and Enablement:

A patent application must provide a clear and complete description of the invention, enabling a person skilled in the field to replicate or practice the invention without undue experimentation.

Sufficient disclosure ensures that the invention is fully described and understood, and the public can benefit from the knowledge disclosed in the patent. The patent application should also include one or more claims that define the scope of the invention and its specific features.

Prior Art:

The Prior art refers to existing knowledge, information, or technology that is publicly available before the filing date of the patent application.

Also the Prior art includes previous patents, published patent applications, scientific literature, publicly accessible websites, and other publicly disclosed information.

The invention must be new and non-obvious in light of the prior art. A patent search is typically conducted to identify and evaluate relevant prior art before filing a patent application.

Right to File:

However, it is important to note that in some cases, such as when an inventor is an employee, the rights to the invention may be assigned to the employer or governed by an employment agreement or contract.

It is crucial to understand the legal rights and obligations related to the invention and patent ownership before filing a patent application for patent registration.

It is worth mentioning that the patent eligibility requirements mentioned above are general principles. Different countries have specific laws, regulations, and practices governing patent eligibility.

For example, some jurisdictions may have stricter requirements for software-related inventions or certain areas of biotechnology. It is advisable to consult with a patent attorney or intellectual property professional to understand the specific eligibility criteria applicable in a particular country or jurisdiction.


In conclusion, to be eligible for a patent, an invention must be novel, involve an inventive step, be industrially applicable, fall within a patentable subject matter, and have a clear and complete disclosure.

The invention should not be obvious to a person skilled in the field, and it must be the result of the inventive efforts of one or more individuals. Understanding and meeting these eligibility requirements is essential for successfully obtaining a patent and enjoying the benefits and protection it provides.