Fig. 1
From: Low-carbon innovation induced by emissions trading in China
Annual low-carbon patent application at the Chinese, US and EU patent offices. SIPO patents are available via its website (http://www.sipo.gov.cn/zhfwpt/zljs/). USPTO and EPO patents are available via EPO’s PATSTAT database (https://www.epo.org/searching-for-patents/business/patstat.html#tab-1). The scope of low-carbon innovation is the same as used in the main estimation (see Methods section) with reference to the IPC Green Inventory
