Derivative work
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In copyright law, a derivative work is an expressive creation that includes major copyrightable elements of a first, previously created original work. The derivative work becomes a second, separate wo
A work can be the source to many different types of derivative works that differ in type from the original. In this illustration, a comic book is the source to merchandise, a video game, a magazine and a film.
Marcel Duchamp's 1919 piece L.H.O.O.Q., a derivative work based on the Mona Lisa
In U.S. law, this derivative work of a chest radiograph (which is in the public domain) is copyrightable because of the additional graphics. Yet the chest radiograph component of the work is still in the public domain.
Fair use
Videos
Fair use is a doctrine in United States law that permits limited use of copyrighted material without permission from the copyright holder. Fair use is one of the limitations to copyright intended to b
Derivative work
…liable for infringement of copyright in a copyright-protected derivative work excused from liability by an affirmative defense, such as first sale or fair use? French law prefers the term "œuvre composite" ("composite work") although the term '"œuvre dérivée" is sometimes used. It is defined in article L…
Joseph Story wrote the opinion in Folsom v. Marsh.