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.

^ 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.
^ Open Patent license proposal at openpatents.org

[biobazaar-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

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