How can one establish the utility of an invention?

Establishing the utility of an invention is primarily concerned with demonstrating that the invention has a specific benefit, practical application, or usefulness in some context. The correct choice emphasizes illustrating the general usefulness or credibility of the invention, which aligns with the requirements outlined in patent law.

Utility is one of the three main criteria for patentability, alongside novelty and non-obviousness. A patent application must show that the invention provides some beneficial result or function. This could involve describing how the invention operates in a real-world scenario, the problems it solves, or the advantages it offers over existing solutions. The focus here is on the inherent usefulness of the invention itself, rather than the opinions or experiences of individuals, market performance, or abstract interest.

Other approaches to establishing utility, such as demonstrating market value or user testimonials, are not as definitive in addressing the patent requirement directly. While market value may suggest practical importance, it does not alone prove that the invention fulfills a specific utility requirement as outlined by patent law. Similarly, while testimonials may reflect user satisfaction, they do not serve as a broad or objective measure of the invention's utility in and of itself. Thus, illustrating the general usefulness of the invention as it relates to its intended purpose provides the clearest demonstration of