Types of Patents & Patentability Criteria MCQs With Answer

Introduction: This quiz collection on Types of Patents & Patentability Criteria is designed specifically for M. Pharm students preparing for MIP 104T – Intellectual Property Rights. It covers fundamental patent categories relevant to pharmaceuticals—such as composition, method, formulation, and use patents—and the legal and technical criteria required for patentability: novelty, inventive step (non‑obviousness), industrial applicability (utility), and sufficiency of disclosure. Questions also touch on priority dates, claim scope, international filing (PCT), and important jurisdictional considerations like India’s Section 3(d). These MCQs reinforce deep understanding needed for patent drafting, prosecution, and critical evaluation of pharmaceutical innovations.

Q1. What are the three main categories of patents recognized in many jurisdictions?

• Utility, design and plant patents
• Chemical, biological and physical patents
• Process, packaging and trademark patents
• Copyright, trademark and trade secret patents

Correct Answer: Utility, design and plant patents

Q2. Which types of patents are most relevant to pharmaceutical inventions?

• Composition of matter, method of treatment, process and use patents
• Design, plant and utility patents only
• Trademark registrations and trade secrets
• Copyright for drug labels and manuals

Correct Answer: Composition of matter, method of treatment, process and use patents

Q3. Which patentability criterion requires that an invention must not have been publicly disclosed before the priority date?

• Industrial applicability
• Novelty (the invention must be new)
• Sufficiency of disclosure
• Claim clarity

Correct Answer: Novelty (the invention must be new)

Q4. How is the inventive step generally assessed in patent law?

• By whether the invention is profitable commercially
• By whether it would have been obvious to a person skilled in the art (non‑obviousness)
• By whether the inventor disclosed the best mode
• By whether the invention is aesthetically pleasing

Correct Answer: By whether it would have been obvious to a person skilled in the art (non‑obviousness)

Q5. What does industrial applicability (or utility) require for a pharmaceutical invention?

• It can be manufactured in a decorative way
• It is susceptible of industrial application or has practical utility
• It must be a naturally occurring substance
• It is patented in at least two countries

Correct Answer: It is susceptible of industrial application or has practical utility

Q6. Which subject matter is commonly excluded from patent protection in most jurisdictions?

• New chemical compounds with therapeutic use
• Discoveries, scientific theories and mathematical methods
• Engineered biologics defined by sequence and function
• Novel medical devices with defined claims

Correct Answer: Discoveries, scientific theories and mathematical methods

Q7. What does sufficiency of disclosure (enablement) require in a patent application?

• The applicant must include commercial data proving marketability
• The disclosure must enable a person skilled in the art to carry out the invention
• A full manufacturing pipeline and sales strategy must be described
• The inventor must list all previous employers

Correct Answer: The disclosure must enable a person skilled in the art to carry out the invention

Q8. Why is the priority date important for assessing patentability?

• It determines when maintenance fees are due
• It fixes the date against which novelty and inventive step are judged
• It dictates the length of patent term irrespective of filing
• It indicates the date of grant of the patent

Correct Answer: It fixes the date against which novelty and inventive step are judged

Q9. Which part of a patent document legally defines the scope of protection?

• The abstract
• The background section
• The claims
• The drawings

Correct Answer: The claims

Q10. What filing system do most countries follow that gives priority to the first person to file a patent application?

• First‑to‑invent
• First‑to‑file
• First‑to‑publish
• First‑to‑commercialize

Correct Answer: First‑to‑file

Q11. What is the standard maximum term of patent protection for a filed patent application in many countries?

• 10 years from grant
• 20 years from filing date
• 50 years from filing date
• Life of the inventor plus 70 years

Correct Answer: 20 years from filing date

Q12. Under India’s Section 3(d), what is required for new forms of known substances to be patentable?

• No additional requirement; new salts are always patentable
• They must show enhanced therapeutic efficacy
• They must be registered as drugs first
• They must be natural extracts only

Correct Answer: They must show enhanced therapeutic efficacy

Q13. What is the purpose of filing under the Patent Cooperation Treaty (PCT)?

• To immediately obtain patents in all member states without national phase entry
• To obtain a unified world patent that does not require national filings
• To provide an international filing system that delays national phase entry while preserving priority
• To register trademarks in multiple countries simultaneously

Correct Answer: To provide an international filing system that delays national phase entry while preserving priority

Q14. What constitutes a novelty-destroying disclosure (novelty bar)?

• Internal lab notes not published or accessible
• Any public disclosure before the priority date that reveals the invention
• A confidential disclosure under a non‑disclosure agreement
• Patent drafts filed but not published

Correct Answer: Any public disclosure before the priority date that reveals the invention

Q15. In patent law, what does “anticipation” mean?

• A single prior art reference discloses all essential features of the claimed invention
• Multiple references together imply the invention
• The invention is commercially unsuccessful
• Claims are poorly drafted and cannot be understood

Correct Answer: A single prior art reference discloses all essential features of the claimed invention

Q16. Which common approach is used by patent examiners (especially in Europe) to assess inventive step?

• Profitability analysis
• Problem‑solution approach comparing closest prior art and technical effect
• Public opinion polling
• Comparing filing dates across unrelated fields

Correct Answer: Problem‑solution approach comparing closest prior art and technical effect

Q17. How is “utility” typically interpreted for pharmaceutical inventions in the United States?

• Any speculative or theoretical use is sufficient
• Specific, substantial and credible utility is required
• Utility is irrelevant for pharmaceuticals
• Utility only requires animal testing data

Correct Answer: Specific, substantial and credible utility is required

Q18. What are the two common types of patent claims used to structure claim sets?

• Literal and equitable claims
• Independent and dependent claims
• Primary and secondary trademarks
• Design and copyright claims

Correct Answer: Independent and dependent claims

Q19. What mechanisms allow third parties to challenge a patent after filing or grant?

• Opposition procedures such as pre‑grant or post‑grant opposition/revocation
• Trademark cancellation only
• Only criminal prosecution can challenge validity
• Patent challenges are not permitted under international law

Correct Answer: Opposition procedures such as pre‑grant or post‑grant opposition/revocation

Q20. Under what condition are polymorphs and crystalline forms of known drugs most likely patentable?

• If they are merely different in appearance with no technical advantage
• Only if they are naturally occurring and unmodified
• If they demonstrate unexpected technical advantages such as improved stability or bioavailability
• If they have been sold for more than five years

Correct Answer: If they demonstrate unexpected technical advantages such as improved stability or bioavailability

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