NBER Categories

This is a mashup of data from nber.org and uspto.gov as explained here. Links in the category column will show patent counts for 1840-2014. Links in the sub category category column will show the uspto class names and provide a link to get the patent counts for the sub category.

NBER		uspto classes
Category	Sub Category
1 Chemical	11 Agriculture, Food, Textiles	8, 19, 71, 127, 442, 504
	12 Coating	106, 118, 401, 427
	13 Gas	48, 55, 95, 96
	14 Organic Compounds	534, 536, 540, 544, 546, 548, 549, 552, 554, 556, 558, 560, 562, 564, 568, 570
	15 Resins	520, 521, 522, 523, 524, 525, 526, 527, 528, 530
	19 Miscellaneous-chemical	23, 34, 44, 102, 117, 149, 156, 159, 162, 196, 201, 202, 203, 204, 205, 208, 210, 216, 222, 252, 260, 261, 349, 366, 416, 422, 423, 430, 436, 494, 501, 502, 510, 512, 516, 518, 585, 588
2 Computers & Communications	21 Communications	178, 333, 340, 342, 343, 358, 367, 370, 375, 379, 385, 455
	22 Computer Hardware & Software	341, 380, 382, 395, 700, 701, 702, 704, 705, 706, 707, 708, 709, 710, 712, 713, 714
	23 Computer Peripherials	345, 347
	24 Information Storage	360, 365, 369, 711
3 Drugs & Medical	31 Drugs	424, 514
	32 Surgery & Med Inst.	128, 600, 601, 602, 604, 606, 607
	33 Biotechnology	435, 800
	39 Miscellaneous-Drgs & Med	351, 433, 623
4 Electrical & Electronic	41 Electrical Devices	174, 200, 327, 329, 330, 331, 332, 334, 335, 336, 337, 338, 392, 439
	42 Electrical Lighting	313, 314, 315, 362, 372, 445
	43 Measuring & Testing	73, 324, 356, 374
	44 Nuclear & X-rays	250, 376, 378
	45 Power Systems	60, 136, 290, 310, 318, 320, 322, 323, 361, 363, 388, 429
	46 Semiconductor Devices	257, 326, 438, 505
	49 Miscellaneous-Elec	191, 218, 219, 307, 346, 348, 377, 381, 386
5 Mechanical	51 Mat. Proc & Handling	65, 82, 83, 125, 141, 142, 144, 173, 209, 221, 225, 226, 234, 241, 242, 264, 271, 407, 408, 409, 414, 425, 451, 493
	52 Metal Working	29, 72, 75, 76, 140, 147, 148, 163, 164, 228, 266, 270, 413, 419, 420
	53 Motors & Engines + Parts	91, 92, 123, 185, 188, 192, 251, 303, 415, 417, 418, 464, 474, 475, 476, 477
	54 Optics	352, 353, 355, 359, 396, 399
	55 Transportation	104, 105, 114, 152, 180, 187, 213, 238, 244, 246, 258, 280, 293, 295, 296, 298, 301, 305, 410, 440
	59 Miscellaneous-Mechanical	7, 16, 42, 49, 51, 74, 81, 86, 89, 100, 124, 157, 184, 193, 194, 198, 212, 227, 235, 239, 254, 267, 291, 294, 384, 400, 402, 406, 411, 453, 454, 470, 482, 483, 492, 508
6 Others	61 Agriculture, Husbandry, Food	43, 47, 56, 99, 111, 119, 131, 426, 449, 452, 460
	62 Amusement Devices	273, 446, 463, 472, 473
	63 Apparel & Textile	2, 12, 24, 26, 28, 36, 38, 57, 66, 68, 69, 79, 87, 112, 139, 223, 450
	64 Earth Working & Wells	37, 166, 171, 172, 175, 299, 405, 507
	65 Furniture, House Fixtures	4, 5, 30, 70, 132, 182, 211, 256, 297, 312
	66 Heating	110, 122, 126, 165, 237, 373, 431, 432
	67 Pipes & Joints	138, 277, 285, 403
	68 Receptacles	53, 206, 215, 217, 220, 224, 229, 232, 383
	69 Miscellaneous-Others	1, 14, 15, 27, 33, 40, 52, 54, 59, 62, 63, 84, 101, 108, 109, 116, 134, 135, 137, 150, 160, 168, 169, 177, 181, 186, 190, 199, 231, 236, 245, 248, 249, 269, 276, 278, 279, 281, 283, 289, 292, 300, 368, 404, 412, 428, 434, 441, 462, 503

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