Callaway Golf has filed two lawsuits against TaylorMade at federal U.S. courts in California and West Texas, accusing its rival of violating its patents on a “golf club head with audible vibration attenuation” and on the materials covering two multi-layer golf balls. Callaway is seeking monetary damages, a declaratory judgment of non-infringement related to those patents and an order that all the infringing TaylorMade products be destroyed. In addition, the company wants an order permanently blocking TaylorMade from using the disputed technology. Callaway’s court action may be in response to suits previously filed by TaylorMade against Callaway over four patents involving the structure of its golf balls and the design of its golf club heads.