20-51 Statistics on Patent of Large and Medium-sized Industrial Enterprises by Industrial Sector (2010)
	(piece)
Sector			Number of
	Patent	Invention	Patents In
	Applications	Patents	Force
Total	198890	72523	113074
Mining and Washing of Coal	1314	333	642
Extraction of Petroleum and Natural Gas	1654	387	1807
Mining of Ferrous Metal Ores	90	17	50
Mining of Non-ferrous Metal Ores	135	68	44
Mining and Processing of Nonmetal Ores	59	37	60
Processing of Food from Agricultural Products	1908	558	621
Manufacture of Foods	1875	834	948
Manufacture of Beverage	1961	272	563
Manufacture of Tobacco	766	245	251
Manufacture of  Textile	6388	809	1660
Manufacture of Textile Wearing Apparel,	1907	197	228
Footware, and Caps
Manufacture of Leather, Fur, Feather & Its Products	1003	114	238
Processing of Timbers, Manufacture of Wood,	594	172	269
Bamboo, Rattan, Palm, and Straw Products
Manufacture of Furniture	1581	215	325
Manufacture of Paper and Paper Products	1247	294	393
Printing, Reproduction of Recording Media	521	183	367
Manufacture of Articles for Culture, Education	1995	248	857
and Sport Activities
Processing of Petroleum, Coking, Processing	558	345	976
of Nuclear Fuel
Manufacture of Chemical Raw Material and	5743	2902	4678
Chemical Products
Manufacture of Medicines	5767	3705	5672
Manufacture of Chemical Fiber	1609	365	409
Manufacture of Rubber	1443	404	533
Manufacture of Plastic	2868	785	1208
Manufacture of Nonmetallic Mineral Products	5192	1800	6254
Manufacture and Processing of Ferrous Metals	5813	2102	2836
Manufacture & Processing of Non-ferrous Metals	3335	1194	2265
Manufacture of Metal Products	5355	1170	2420
Manufacture of General Purpose Machinery	13922	3330	5668
Manufacture of Special Purpose Machinery	13467	4027	6303
Manufacture of Transport Equipment	23700	5391	6983
Manufacture of Electrical Machinery & Equipment	28978	8339	12492
Manufacture of Communication Equipment,	46209	28913	41130
Computer and Other Electronic Equipment
Manufacture of Measuring Instrument and	5131	1485	2749
Machinery for Cultural Activity & Office Work
Manufacture of Artwork, Other Manufacture	1825	290	425
Production and Supply of Electric Power and Heat Power	2891	956	687
Production and Distribution of Gas	22	8	20
Production and Distribution of Water	51	19	32