20-50  Statistics on Patent of Large and Medium-sized Industrial Enterprises by Industrial Sector (2008)
	(piece)
Sector	Patent		Invention
	Applications	Invention	Patents Owned
		Patents
Total	122076	43773	55723
Mining and Washing of Coal	715	151	286
Extraction of Petroleum and Natural Gas	1150	275	531
Mining of Ferrous Metal Ores	46	12	32
Mining of Non-ferrous Metal Ores	88	45	76
Mining and Processing of Nonmetal Ores	56	36	39
Processing of Food from Agricultural Products	737	203	338
Manufacture of Foods	1198	480	405
Manufacture of Beverage	1036	120	470
Manufacture of Tobacco	594	271	163
Manufacture of  Textile	5629	661	829
Manufacture of Textile Wearing Apparel,	620	87	189
Footware, and Caps
Manufacture of Leather, Fur, Feather & Its Products	546	63	171
Processing of Timbers, Manufacture of Wood,	322	82	248
Bamboo, Rattan, Palm, and Straw Products
Manufacture of Furniture	1204	43	221
Manufacture of Paper and Paper Products	507	197	278
Printing, Reproduction of Recording Media	204	79	133
Manufacture of Articles for Culture, Education	1653	125	474
and Sport Activities
Processing of Petroleum, Coking, Processing	256	175	735
of Nuclear Fuel
Manufacture of Chemical Raw Material and	3935	2098	3198
Chemical Products
Manufacture of Medicines	3917	2538	3170
Manufacture of Chemical Fiber	446	182	266
Manufacture of Rubber	771	159	236
Manufacture of Plastic	1283	246	516
Manufacture of Nonmetallic Mineral Products	2524	530	1118
Manufacture and Processing of Ferrous Metals	3529	1331	1256
Manufacture & Processing of Non-ferrous Metals	3034	1104	1309
Manufacture of Metal Products	3433	644	1297
Manufacture of General Purpose Machinery	6987	1820	2705
Manufacture of Special Purpose Machinery	7922	2494	2811
Manufacture of Transport Equipment	12888	2549	4501
Manufacture of Electrical Machinery & Equipment	17322	4466	6534
Manufacture of Communication Equipment,	30386	18939	18750
Computer and Other Electronic Equipment
Manufacture of Measuring Instrument and	4067	843	1376
Machinery for Cultural Activity & Office Work
Manufacture of Artwork, Other Manufacture	1098	177	526
Production and Supply of Electric Power and Heat Power	1912	528	489
Production and Distribution of Gas	31	8	16
Production and Distribution of Water	28	12	31