Skip to main content
. 2018 Jul 27;23(8):1885. doi: 10.3390/molecules23081885

Table 2.

Number of patents specifying “lignin”, refined by “lignin in drug release” and “lignin scaffolds”, respectively, according to World Intellectual Property Organization (WIPO), searched on 20 June 2018.

Filing Year “Lignin” “Lignin and Drug Release” “Lignin and Scaffolds”
2014 5877 474 683
2015 5766 440 601
2016 5912 449 601
2017 5264 412 488
2018 1691 153 183