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Novelty and non-obviousness in Canadian patent law
For a patent to be valid in Canada, the invention claimed therein needs to be new and inventive. In patent law, these requirements are known as novelty and non-obviousness. A patent cannot in theory be granted for an invention without meeting these basic requirements or at least, if a patent which does not meet these requirements is granted, it cannot later be maintained. These requirements are borne out of a combination of statute and case law.
==Novelty==
The definition of “invention” in section 2 of the ''Patent Act (R.S.C., 1985, c. P-4)''〔''Patent Act'', RSC 1985, c P-4.〕 uses the word “new”. This means the invention must not already be known. Section 28.2(1) of the ''Patent Act'' explicitly codifies the novelty requirement.〔''Patent Act'', RSC 1985, c P-4, s. 28.2(1).〕
Section 28.2 thus blocks patent applications if the applicant, or someone who obtained their knowledge from the applicant, made the invention public more than a year before applying; if anyone else made the invention public before the application; or if the invention is already subject to an earlier patent application.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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