What is NOT a necessary qualification to obtain a patent on an invention?

Obtaining a patent on an invention requires meeting several critical qualifications, but marketing the invention is not one of them. The essential criteria for patentability include novelty, non-obviousness, and usefulness.

Novelty means that the invention must be new and not previously known or used by others before the filing date of the patent application. Non-obviousness refers to the requirement that the invention must not be an obvious development to someone with ordinary skill in the field related to the invention. Usefulness indicates that the invention must have some practical utility or be capable of providing some benefit.

Marketing, while important for bringing the invention to consumers and generating revenue, does not impact the legal criteria for obtaining a patent. Thus, an invention does not need to be marketed to secure a patent; it simply needs to fulfill the legal requirements of novelty, non-obviousness, and usefulness.