A compulsory license provides that the owner of a patent or copyright licenses the use of their rights against payment either set by law or determined through some form of adjudication or arbitration. In essence, under a compulsory license, an individual or company seeking to use another's intellectual property can do so without seeking the rights holder's consent, and pays the rights holder a set fee for the license. This is an exception to the general rule under intellectual property laws that the intellectual property owner enjoys exclusive rights that it may license—or decline to license—to others.
Under UK patent law, a compulsory license is different from a statutory license. Under statutory license, the rate is fixed by law, whereas in case of compulsory license, the rate is left to be negotiated or decided in court.[1]