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United States Court of Appeals for the Federal Circuit 
 
 
 
 
 
 
 
 
 
 
 
 
2007-1130 
(Serial No. 08/833,892) 
 
 
IN RE BERNARD L. BILSKI  
and RAND A. WARSAW 
 
 
Appeal from the United States Patent and Trademark Office, Board of Patent Appeals 
and Interferences. 
 
 
DYK, Circuit Judge, with whom LINN, Circuit Judge, joins, concurring. 
 
While I fully join the majority opinion, I write separately to respond to the claim in 
the two dissents that the majority’s opinion is not grounded in the statute, but rather 
“usurps the legislative role.”
1
  In fact, the unpatentability of processes not involving 
manufactures, machines, or compositions of matter has been firmly embedded in the 
statute since the time of the Patent Act of 1793, ch. 11, 1 Stat. 318 (1793).  It is our 
dissenting colleagues who would legislate by expanding patentable subject matter far 
beyond what is allowed by the statute. 
Section 101 now provides: 
Whoever invents or discovers any new and useful process, 
machine, manufacture, or composition of matter, or any new and useful 
improvement thereof, may obtain a patent therefor, subject to the 
conditions and requirements of this title. 
 
                                            
1
 The dissents fault the majority for “ventur[ing] away from the statute,” Rader, J., 
dissenting op. at 6, and “usurp[ing] the legislative role,” Newman, J., dissenting op. at 
41.