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to invention patents on advances in trade itself, because trade monopolies were 
odious.”).   
There is nothing in the early patent statutes to indicate that Congress intended 
business methods to constitute patentable subject matter.  See Patent Act of 1790 § 4, 
1 Stat. 109, 111 (1790); Patent Act of 1793 § 1, 1 Stat. 318, 319 (1793); Pollack, supra 
at 106 (“[I]f any nation was ripe for invention patents on business methods, it was the 
newly freed colonies of British North America. . . .  [H]owever, no business method 
patents seem to have been granted.”).  As early as 1869, the Commissioner of Patents 
said that “[i]t is contrary . . . to the spirit of the law, as construed by the office for many 
years, to grant patents for methods of book-keeping,” Ex parte Abraham, 1869 Dec. 
Comm'r Pat. 59, 59 (1869), and by 1893 the courts had concluded that “a method of 
transacting common business . . . does not seem to be patentable as an art,” United 
States Credit Sys. Co. v. Am. Credit Indem. Co., 53 F. 818, 819 (C.C.S.D.N.Y. 1893),
 
aff'd on other grounds, 59 F. 139 (2d Cir. 1893)
.
  By 1952, when Congress enacted the 
current Patent Act, it was widely acknowledged that methods of doing business were 
ineligible for patent protection.  See, e.g., Loew’s Drive-In Theatres, Inc. v. Park-In 
Theatres, Inc., 174 F.2d 547, 552 (1st Cir. 1949) (“[A] system for the transaction of 
business . . . however novel, useful, or commercially successful is not patentable apart 
from the means for making the system practically useful, or carrying it out.”); In re 
Patton, 127 F.2d 324 (CCPA 1942) (noting that “a system of transacting business, apart 
from the means for carrying out such system” is not patentable); Hotel Sec. Checking 
Co. v. Lorraine Co., 160 F. 467, 469 (2d Cir. 1908)
 
(“A system of transacting business 
disconnected from the means for carrying out the system is not, within the most liberal 
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