A federal court has dealt a blow to Solomon Technologies Inc.'s case alleging Toyota Motor Corp.'s hybrid vehicles infringe its patent, finding that the plaintiff could not abandon the claim construction basis that it had adopted during previous litigation. The judge granted a summary judgment bid by Toyota after determining that Solomon was not allowed to argue that a claim limitation did not apply because it contradicted the position it took earlier in related proceedings before the U.S. International Trade Commission and the U.S. Court of Appeals for the Federal Circuit. Toyota's counterclaims for invalidity and unenforceability due to inequitable conduct remain pending in the case. Toyota is represented in this matter by Finnegan.