OTTAWA — Changes to the country’s patent and trademark legislation will make it easier for Canadian companies to operate on a global stage, the head of an intellectual property professional organization said Thursday, celebrating the Friday coming into force of amendments to the two acts. Amendments to the Trade-marks Act and the Patent Act will “protect confidential communications between clients and their patent and trademark agents made for the purpose of seeking or giving advice with respect to any matter relating to the protection of an invention or...