Meaning
Judicial decisions recognize that permission to use intellectual property can arise from the conduct of the parties even without a signed contract. A nonexclusive implied license exists when a creator delivers a work to another party intending that they use it, and the other party does so. This unwritten permission prevents the creator from later suing for infringement, although it does not transfer ownership.
Legal Foundation
Courts infer the existence of an agreement to prevent unfairness when a party has paid for a work but did not execute a formal assignment. In such cases, the nonexclusive implied license is created by the combination of a request for work, its delivery and the mutual understanding of its intended purpose. This legal doctrine protects the payer from immediate liability.
It does not, however, grant exclusive rights, meaning the creator can still sell the same work to others.
Use Scope
Permitted uses under an unwritten agreement are limited to what was reasonably expected at the time of the transaction. A startup that uses code delivered by a developer without a contract might only have the right to run that specific software, not to modify it or sell it to a competitor. These boundaries are defined by the circumstances of the delivery rather than the desires of the user.
Commercial Risk
Relying on unwritten agreements creates massive uncertainty during due diligence because investors cannot verify the extent of the rights. A developer can revoke the permission at any time if it is not supported by consideration, leading to disputes that can halt operations. Acquiring written assignments is the only secure way to protect the software asset.
