Top Patent Holders of US Building Material Industry (2007-2018)
The patent filing trends of Building Material show the dominance of the 3 companies: Halliburton, BASF, and Schlumberger Technology. The trio has maintained the top 3 positions in the Building Materials patent filers list from 2007-2016. Halliburton first overtook Schlumberger in 2013 to come at the second spot and then
