The Court of Justice of the EU's decision on hyperlinks creates liability for a communication to the public. The US laws generally allow more flexibility and do not create liability for hyperlinking.
An infringement suit over cheerleading uniform designs, with potential implications for fashion designs ranging from everyday blue jeans to basic cosplay, as well as for the 3D printing industry, awaits a decision on certiorari.
The prominence of the hashtag on social medial has encouraged companies to trademark their popular terms for branding and marketing purposes. The United States Patent and Trademark Office has already declared that hashtags can be trademarked, now the courts need shape this emerging area of law.