.
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 |