Patentleft

Patentleft is the practice of licensing patents (especially biological patents) for royalty-free use, on the condition that adopters license related improvements they develop under the same terms. Copyleft-style licensors seek "continuous growth of a universally accessible technology commons" from which they, and others, will benefit.[1][2]

Patentleft is analogous to copyleft, a license that allows distribution of a copyrighted work and derived works, but only under the same or equivalent terms.

  1. ^ Hope, Janet (2008). The Red Book of Varieties and Schemes. Lecture Notes in Mathematics. Vol. 1358. Harvard University Press. pp. 176–187. doi:10.1007/b62130. ISBN 978-0-674-02635-3.
  2. ^ Open Patent license proposal at openpatents.org