A controversial jury trial ended the patent infringement lawsuit that Carl Zeiss Vision International and Carl Zeiss Vision GmbH filed in the U.S. against Signet Armorlite, and the result is fuzzy. The case, which concerns the licensing of patents for the fast-growing category of back-side progressive lenses, saw Zeiss filing suit in 2007 over a patent it obtained in 2000. It said that Signet Armorlite and its Kodak Unique brand infringed on that patent. The jury leaned in favor of Zeiss for some parts of the suit but in favor of Signet Armorlite for others, so a mistrial was declared. The companies must discuss the ruling with the judge. Another trial could be held to resolve the issue.