Total expenditures on research and development for the Group in the year under review totaled CHF 180.8 million (previous year: CHF 172.1 million), equivalent to 2.9% of sales (previous year: 3.0%).

Intellectual property

Sika maintains exclusivity over its innovative products through the systematic registration of its intellectual property rights. 112 new inventions were reported in 2017 (previous year: 84) and 74 new patent applications were filed (previous year: 72). By the end of 2017 Sika’s patent portfolio included more than 700 unique patent families with more than 2,700 single national patents.