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extra-solution activity”.  Maj. op. at 24.  We are advised that transformation must be 
“central to the purpose of the claimed process,” id., although we are not told what kinds 
of transformations may qualify, id. at 25-26.  These concepts raise new conflicts with 
precedent. 
This court and the Supreme Court have stated that “there is no legally 
recognizable or protected ‘essential’ element, ‘gist’ or ‘heart’ of the invention in a 
combination patent.”  Allen Eng’g Corp. v. Bartell Industries, Inc., 299 F.3d 1336, 1345 
(Fed. Cir. 2002) (quoting Aro Mfg. Co. v. Convertible Top Replacement Co., 365 U.S. 
336, 345 (1961)).  This rule applies with equal force to process patents, see W.L. Gore 
& Associates, Inc. v. Garlock, Inc., 721 F.2d 1540, 1548 (Fed. Cir. 1983) (there is no 
gist of the invention rule for process patents), and is in accord with the rule that the 
invention must be considered as a whole, rather than “dissected,” in assessing its 
patent eligibility under Section 101, see Diehr, 450 U.S. at 188.  It is difficult to predict 
an adjudicator’s view of the “invention as a whole,” now that patent examiners and 
judges are instructed to weigh the different process components for their “centrality” and 
the “significance” of their “extra-solution activity” in a Section 101 inquiry. 
As for whether machine implementation will impose “meaningful limits in a 
particular case,” the “meaningfulness” of computer usage in the great variety of 
technical and informational subject matter that is computer-facilitated is apparently now 
a flexible parameter of Section 101.  Each patent examination center, each trial court, 
each panel of this court, will have a blank slate on which to uphold or invalidate claims 
based on whether there are sufficient “meaningful limits”, or whether a transformation is 
adequately “central,” or the “significance” of process steps.  These qualifiers, appended 
2007-1130 
 
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