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Which of the following is patentable in law of patents?

Question and options

Which of the following is patentable in law of patents?
  1. A naturally occurring DNA segment
  2. Identification of virus which caused Hepatitis B
  3. A testing kit, enabling doctors to identify person infected with Hepatitis B
  4. Crick and Watson’s identification of the DNA double helix

Answer and explanation

Correct answer: C - A testing kit, enabling doctors to identify person infected with Hepatitis B
A diagnostic test kit is a man-made product with industrial application and can be patented. Natural DNA segments, identification of a virus and discovery of the double-helix structure are discoveries of things existing in nature, excluded by section 3(c).

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