20-52 Statistics on Patent of Large and Medium-sized Industrial Enterprises by Industrial Sector (2009)
	(piece)
Sector			Number of
	Patent	Invention	Patents In
	Applications	Patents	Force
Total	168408	63230	81625
Mining and Washing of Coal	984	391	451
Extraction of Petroleum and Natural Gas	1429	399	1168
Mining of Ferrous Metal Ores	63	27	48
Mining of Non-ferrous Metal Ores	125	42	106
Mining and Processing of Nonmetal Ores	73	29	43
Processing of Food from Agricultural Products	1224	424	380
Manufacture of Foods	1815	705	672
Manufacture of Beverage	1503	266	425
Manufacture of Tobacco	644	230	162
Manufacture of  Textile	5382	878	998
Manufacture of Textile Wearing Apparel,	1537	169	284
Footware, and Caps
Manufacture of Leather, Fur, Feather & Its Products	857	66	65
Processing of Timbers, Manufacture of Wood,	973	190	185
Bamboo, Rattan, Palm, and Straw Products
Manufacture of Furniture	1171	67	224
Manufacture of Paper and Paper Products	635	248	268
Printing, Reproduction of Recording Media	547	137	312
Manufacture of Articles for Culture, Education	2446	256	618
and Sport Activities
Processing of Petroleum, Coking, Processing	395	252	848
of Nuclear Fuel
Manufacture of Chemical Raw Material and	5928	3086	3911
Chemical Products
Manufacture of Medicines	4811	2952	3911
Manufacture of Chemical Fiber	710	188	325
Manufacture of Rubber	1095	226	487
Manufacture of Plastic	2645	626	887
Manufacture of Nonmetallic Mineral Products	5408	2665	6848
Manufacture and Processing of Ferrous Metals	4824	1836	2065
Manufacture & Processing of Non-ferrous Metals	3253	1168	2219
Manufacture of Metal Products	4497	754	1415
Manufacture of General Purpose Machinery	10618	2676	4482
Manufacture of Special Purpose Machinery	9677	3017	3950
Manufacture of Transport Equipment	19131	3911	4828
Manufacture of Electrical Machinery & Equipment	23125	6268	10141
Manufacture of Communication Equipment,	40713	26627	25448
Computer and Other Electronic Equipment
Manufacture of Measuring Instrument and	5381	1333	2179
Machinery for Cultural Activity & Office Work	1749	249	368
Manufacture of Artwork, Other Manufacture
Production and Supply of Electric Power and Heat Power	2974	848	831
Production and Distribution of Gas	6	2	16
Production and Distribution of Water	43	20	45