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"When there is a design need or market pressure to solve a problem and there are a finite number of identified, predictable solutions, a person of ordinary skill has good reason to pursue the known options withinhis or her technical grasp. If this leads to the anticipated success, it is likely the product not of innovation but of ordinary skill and common sense. In that instance the fact that a combination was obvious to try might show that itwas obvious under §103." See KSR International Co. v. Teleflex Inc., at 17. So, the teaching, suggestion or motivation comes from not only the cited prior arts but other references having no claimed elements therein.