Acushnet Company, manufacturer of Titleist, has announced a series of actions to protect the intellectual property related to its golf ball products. Acushnet has filed a patent infringement lawsuit against Callaway Golf and in the complaint has asserted that Callaway’s Tour i and Tour ix golf balls infringe nine U.S. patents from Acushnet’s extensive golf ball patent portfolio covering its multi-piece, solid-core technology.

Acushnet also announced actions to vigorously defend against assertions by Callaway that the 2009 Pro V1 and Pro V1x golf balls infringe Callaway’s patent rights, asking the court to rule that the patents asserted by Callaway are not infringed and are invalid. Acushnet is also in the process of filing for reexamination of these and other Callaway patents with the United States Patent and Trademark Office.