Patents Definition, Kinds, Essentials

1. Product Patent

A Product Patent is granted for a new and innovative product or article created through invention. It gives the inventor exclusive rights to make, use, sell, or license that particular product for a limited period. Under the Patents Act, 1970, a product patent is granted only when the invention is new, involves an inventive step, and has industrial application. Product patents are common in fields such as pharmaceuticals, electronics, machinery, and technology. They prevent others from producing or commercially using the patented product without permission. This protection encourages investment in research and development.

2. Process Patent

A Process Patent is granted for a new method, technique, or process used to manufacture a product or achieve a specific result. The patent protects the method rather than the final product itself. Under the Patents Act, 1970, a process invention must satisfy the requirements of novelty, inventive step, and industrial applicability. Process patents are important in industries such as chemicals, manufacturing, biotechnology, and pharmaceuticals. The owner has exclusive rights to use or authorize the patented process. This encourages innovation by protecting improved methods of production and technical procedures.

3. Ordinary Patent

An Ordinary Patent refers to a patent application filed directly with the Indian Patent Office without claiming priority from any earlier application. It is one of the common forms of patent applications under the Patents Act, 1970. The applicant must disclose complete details of the invention and satisfy the conditions of patentability, including novelty, inventive step, and industrial application. Ordinary patents may relate to products or processes. After examination and approval, the inventor receives exclusive rights over the invention for a limited period. It provides legal protection against unauthorized use.

4. Convention Patent

A Convention Patent is a patent application filed in India by an applicant who has already filed a similar patent application in a convention country. Under the Patents Act, 1970, the applicant can claim priority based on the earlier foreign application if the requirements are fulfilled. This allows inventors to protect their inventions internationally while maintaining the original priority date. Convention patents encourage global innovation and cooperation by providing a mechanism for international patent protection. They are useful for inventors seeking protection in multiple countries.

5. PCT National Phase Patent

A PCT National Phase Patent is filed in India through the Patent Cooperation Treaty (PCT) system. An applicant who files an international patent application can enter the Indian national phase within the prescribed time. The application is then examined according to Indian patent laws under the Patents Act, 1970. This system simplifies the process of seeking patent protection in multiple countries. It reduces procedural difficulties and provides inventors with more time to decide where protection is required. It is widely used for international inventions.

6. Divisional Patent

A Divisional Patent is created when a patent application contains more than one invention and the applicant divides it into separate applications. Under the Patents Act, 1970, a divisional application allows each invention to be examined separately. The divisional patent retains the priority date of the original application. This provision helps inventors protect multiple inventions disclosed in a single application. It also ensures that each invention receives proper consideration during examination. Divisional patents improve flexibility in the patent registration process and prevent loss of patent rights.

7. Patent of Addition

A Patent of Addition is granted for an improvement or modification of an existing patented invention. Under the Patents Act, 1970, the inventor of the original patent may apply for protection of improvements related to the main invention. A patent of addition does not require a separate renewal fee and generally continues along with the main patent. It encourages inventors to develop improvements without losing protection. This type of patent is useful when new developments are closely connected with an already patented invention and cannot be treated as completely independent.

8. Pharmaceutical Patent

A Pharmaceutical Patent relates to inventions in the field of medicines, drugs, chemical compounds, and medical technology. It may protect a new drug molecule, formulation, manufacturing process, or pharmaceutical composition. In India, pharmaceutical patents are governed by the Patents Act, 1970, subject to specific restrictions under the Act. Such patents encourage research and development by providing exclusive rights to innovators. However, public health considerations are also balanced through provisions relating to compulsory licensing and accessibility of medicines. Pharmaceutical patents play an important role in medical innovation.

9. Software Related Patent

A Software Related Patent refers to patent protection involving computer implemented inventions or technological processes involving software. Under the Patents Act, 1970, a computer programme by itself is generally not patentable under Section 3(k). However, inventions involving software combined with technical effects or hardware components may qualify for protection if they meet patent requirements. Such patents aim to protect genuine technological innovations rather than simple computer codes. They are important in modern industries involving artificial intelligence, automation, and digital technologies.

10. Biological Patent

A Biological Patent relates to inventions involving biological materials, microorganisms, biotechnology processes, or genetically related innovations. Under the Patents Act, 1970, biological inventions may be patentable if they satisfy conditions of novelty, inventive step, and industrial application. However, certain biological discoveries and naturally occurring substances may be excluded from patent protection. These patents are important in areas such as agriculture, medicine, biotechnology, and genetic research. They encourage scientific development while maintaining legal limits to protect public interest and ethical considerations.

Essentials for Grant of Patent:

1. Novelty (New Invention)

Novelty is one of the essential requirements for granting a patent under the Patents Act, 1970. An invention must be new and should not have been previously disclosed to the public anywhere in the world before the filing date of the patent application. If the invention is already known or available in public records, it cannot be patented. Novelty ensures that patent protection is provided only for original inventions and not for existing knowledge. This requirement encourages inventors to develop new technologies and prevents duplication of already existing inventions.

2. Inventive Step (Non Obviousness)

An invention must involve an inventive step to qualify for patent protection under the Patents Act, 1970. This means the invention should not be obvious to a person skilled in the relevant field. It must show technical advancement or economic significance compared with existing knowledge. A simple modification or routine improvement may not satisfy this requirement. The purpose of this condition is to ensure that patents are granted only for genuine innovations involving creativity and technical contribution. It prevents unnecessary monopolies over ordinary developments.

3. Industrial Applicability

Industrial applicability means that an invention must be capable of being made or used in an industry. Under the Patents Act, 1970, an invention should have practical utility and should provide a useful result. The invention need not be commercially successful but must have a real and workable application. This requirement prevents patents from being granted for theoretical ideas, abstract concepts, or inventions without practical use. It ensures that patent protection benefits technological progress and supports industrial development through useful innovations.

4. Patentable Subject Matter

The invention must fall within the category of subject matter that can legally receive patent protection under the Patents Act, 1970. The invention may relate to a product or process that satisfies the requirements of patentability. However, certain inventions are excluded under Sections 3 and 4 of the Act, such as certain discoveries, mathematical methods, and atomic energy related inventions. This requirement ensures that only legally recognized inventions receive protection and prevents granting monopolies over matters considered against public interest.

5. Proper Disclosure of Invention

A patent applicant must provide complete and clear disclosure of the invention in the patent specification. Under the Patents Act, 1970, the applicant must describe the invention in a manner that enables a person skilled in the field to perform it. The disclosure includes details of the invention, method of operation, and best method of performing it. This requirement maintains a balance between inventor rights and public interest. In exchange for exclusive rights, the inventor shares technical knowledge with society.

6. Clear and Definite Claims

Patent claims define the scope of protection granted to an invention. Under the Patents Act, 1970, claims must be clear, precise, and supported by the description provided in the specification. Unclear or overly broad claims may lead to rejection or limitation of patent rights. Proper claims inform the public about what aspects of the invention are protected and what activities may amount to infringement. This requirement ensures certainty in patent rights and helps avoid unnecessary legal disputes between inventors and competitors.

7. True and First Inventor Requirement

A patent application must be filed by the true and first inventor or a person legally entitled to apply under the Patents Act, 1970. The inventor must genuinely contribute to the creation of the invention. Patent rights are not granted to persons who merely copy or falsely claim ownership of an invention. This requirement protects the rights of genuine inventors and encourages original research. It also prevents fraudulent patent claims and ensures that patent benefits are provided to the rightful creator.

8. Filing of Patent Application

A patent can be granted only after filing a proper patent application with the Indian Patent Office. The application must include the prescribed forms, specifications, drawings where necessary, and required fees under the Patents Act, 1970 and related rules. The application undergoes examination before grant. Proper filing establishes the priority date of the invention and begins the legal process of obtaining patent protection. Without a valid application, an inventor cannot claim statutory patent rights over the invention.

9. Compliance with Legal Requirements

The invention and the patent application must comply with all legal requirements prescribed under the Patents Act, 1970. This includes meeting conditions relating to novelty, inventive step, industrial applicability, disclosure, and other statutory provisions. The Patent Office examines the application to ensure that the invention does not violate legal restrictions. Compliance ensures that patent rights are granted fairly and only for eligible inventions. It maintains a balance between encouraging innovation and protecting public interest.

10. Non-Disclosure Before Filing

An inventor should avoid publicly disclosing an invention before filing a patent application because prior disclosure may affect novelty. Under the Patents Act, 1970, prior publication or public knowledge may prevent an invention from being considered new. Maintaining confidentiality before filing helps preserve patent eligibility. Inventors often use confidentiality agreements while discussing inventions with others. This requirement protects the originality of the invention and ensures that the inventor can successfully obtain legal protection after completing the patent application process.