Table 1.

Top 10 intellectual property offices for published patents (N=15,763).

Intellectual property office	Published patents, n (%)
China National Intellectual Property Administration	7253 (46.01)
United States Patent and Trademark Office	4052 (25.71)
Japanese patent office	2174 (13.79)
European patent office	1242 (7.88)
IP Australia	244 (1.55)
Inspirations Property Institution	228 (1.45)
World Intellectual Property Organization	216 (1.37)
Deutsches Patent- und Markenamt	172 (1.09)
Canadian Intellectual Property Office	94 (0.6)
Spanish Patent and Trademark Office	46 (0.29)