Organic Process Patents New Page added under Obviousness: Obviousness of Chemical Processes A “method of making” a compound may be non-obvious if the starting material or final product are themselves non-obvious. In re Ohciai has been good law for 20+ years. Share:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to print (Opens in new window)