The U.S. District Court for the District of Colorado recently denied a manufacturer of ceramic medical products trade dress protection for the color pink for its ceramic hip-implant components.
CeramTec sells ceramic hip-implant components made of zirconia-toughened aluminia (ZTA), under the name BIOLOX Delta. Hardness is an important characteristic of such components because it impacts wear and performance. In 1998, CeramTec obtained a utility patent that disclosed a combination of chromium and zirconium dioxide to achieve hardness scores for ZTA ceramics that had never been obtained before. The chromium gives BIOLOX Delta its light pink color. Continue reading