LPKF Laser & Electronics AG of Garbsen, Germany, is suing an undisclosed mobile-phone manufacturer for infringing on its patented laser direct structuring antenna manufacturing process for cellphones and tablets. The number of infringements on this patent has increased based on the technology’s increased popularity, LPKF said. “We will not only take legal action against electronics producers, but also those who use the parts in their products,” said CEO Dr. Ingo Bretthauer.