Proceedings for the adjudication of conflicting claims to intellectual property are technical and complicated; so that, when these controversies arise, counsel familiar with the field should be engaged. In the case of patent rights, records of the inventor's activities should be maintained which are complete and which are corroborated. In the case of trademark rights, records of the early use of the trademark should be kept, and representative records of subsequent use should be kept, so that convincing evidence of continuous use of the trademark may be presented. Interference proceedings may take several years and are expensive. During the period in which the parties are fighting over their rights, the value of those rights themselves may be lost because of other circumstances and developments. For this reason, a determined effort should be made by each party to settle the controversy without delay.
William C. McCoy Jr., Resolution of Conflicting Claims to Intellectual Property, 9 Clev.-Marshall L. Rev. 57 (1960)