StixToGo Inc. owns several foreign Patents and is proudly Trademarked in 32 countries, including the EU, North America and most of Asia. For US patents, please reference USPTO US 8,052,003 B2, US 9,216,846 B2, US D659,465 S, US D660,077 S, US D673,809 S, US D705,592 S. For Chinese patents, please reference 201130088377.4, 201130088396.7. For Mexican patents, please reference 1615710. Write us to reference additional foreign Patents and Trademarks. We take intellectual property seriously.