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Nonobviousness: Before And After, Dmitry Karshtedt

GW Law Faculty Publications & Other Works

The requirement of nonobviousness, codified in 35 U.S.C. § 103, has been called “the ultimate condition of patentability” because of its crucial function of keeping technically trivial inventions out of the patent system. The obviousness determination must be made based on the state of the invention’s field at a particular point in time—in the Patent Act’s current version, the date that the patent application was effectively filed with the U.S. Patent and Trademark Office (“PTO”).

However, in spite of the critical role of time in patent law and the danger that hindsight bias could distort § 103 analysis when patentability …