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  Patent Group
  Computer Software and Intellectual Property Law
 

Computer Software and Copyright

15. Computer Programs Are Usually Licensed, Not Sold

In an effort to minimize the danger of unauthorized copying of software, authors of computer programs usually do not sell them, they license them. A license grants permission to the licensee to do something with a copy of the computer program subject to certain conditions. These conditions generally include that the copy of the software cannot be sub-licensed or rented to a third party and that only one copy can be made for backup or minor adaptation by the licensee only.

*Written by John E. Wehrli, formerly of the Patent Department, Lawrence Berkeley National Laboratory. Available as LBL Report No. 38995.