Nuevas Tecnologias y Engergías Catalá (NT-K) has filed charges against Apple in Spain, alleging that the company went too far in its ultimately-unsuccessful 2010 patent litigation and crossed the line into extortion, FOSS Patents reports. The company, which manufactures its own Android-based tablet with a familiar look, won a case brought against it by Apple accusing the company of counterfeiting, but did suffer a short-term customs ban.