| Patents > Guidance, Tools, and Manuals > Classification > US to IPC Concordance |
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| Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
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| You are viewing a US to IPC Concordance. |
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| Printable Version[PDF] See notes regarding proper use of US-to-IPC Concordances. | ||
| U.S. Subclass | IPC8 Subclass | IPC8 Group |
|---|---|---|
| 1A | G 01 C | 11 / 00 |
| 1A | G 01 C | 11 / 04 |
| 1B | G 01 B | 3 / 00 |
| 1B | G 01 B | 5 / 00 |
| 1C | G 01 B | 5 / 26 |
| 1C | G 01 B | 21 / 20 |
| 1D | B 23 Q | 16 / 02 |
| 1D | B 23 Q | 17 / 22 |
| 1D | G 01 D | 13 / 10 |
| 1E | E 21 B | 47 / 00 |
| 1F | B 26 B | 29 / 00 |
| 1F | G 01 B | 3 / 00 |
| 1G | B 05 C | 17 / 06 |
| 1G | G 01 B | 3 / 00 |
| 1H | G 01 C | 15 / 00 |
| 1K | B 43 L | 13 / 00 |
| 1L | G 01 B | 9 / 00 |
| 1L | G 01 B | 11 / 00 |
| 1M | B 23 Q | 1 / 62 |
| 1M | G 01 B | 5 / 004 |
| 1M | G 01 B | 7 / 004 |
| 1N | G 01 B | 3 / 56 |
| 1N | G 01 B | 5 / 24 |
| 1P | G 01 B | 17 / 00 |
| 1Q | B 43 L | 13 / 20 |
| 1Q | B 61 K | 9 / 08 |
| 1Q | E 01 B | 35 / 00 |
| 1R | B 43 L | 5 / 00 |
| 1R | B 43 L | 13 / 20 |
| 1R | G 01 B | 3 / 14 |
| 1R | G 01 B | 5 / 24 |
| 1R | G 01 C | 21 / 20 |
| 1R | G 01 V | 1 / 30 |
| 1R | G 09 B | 29 / 10 |
| 1S | B 27 G | 21 / 00 |
| 1T | G 01 C | 1 / 00 |
| 1V | G 01 F | 17 / 00 |
| 1AA | B 43 L | 5 / 00 |
| 1AP | B 43 L | 9 / 08 |
| 1AP | B 43 L | 13 / 00 |
| 1BB | G 01 B | 13 / 00 |
| 1BB | G 01 B | 13 / 14 |
| 1CC | G 01 B | 7 / 004 |
| 1CF | G 01 B | 3 / 20 |
| 1CF | G 01 B | 5 / 02 |
| 1DD | G 01 C | 1 / 00 |
| 1HH | G 01 G | 1 / 16 |
| 1HH | G 01 V | 1 / 28 |
| 1HH | G 01 V | 15 / 00 |
| 1LE | G 01 C | 15 / 00 |
| 1MP | G 01 B | 5 / 14 |
| 1MP | G 01 C | 3 / 10 |
| 1PT | G 01 B | 5 / 24 |
| 1PT | G 01 B | 7 / 30 |
| 1SA | G 01 B | 5 / 00 |
| 1SA | G 01 C | 21 / 02 |
| 1SA | G 01 C | 21 / 20 |
| 1SB | G 06 G | 1 / 00 |
| 1SC | G 01 C | 21 / 00 |
| 1SD | G 01 C | 21 / 20 |
| 1SD | G 06 G | 1 / 00 |
| 1SP | G 06 G | 1 / 00 |
| 2A | A 41 H | 1 / 00 |
| 2A | D 06 H | 3 / 00 |
| 2A | D 06 H | 3 / 16 |
| 2H | A 41 H | 1 / 00 |
| 2R | A 41 H | 1 / 00 |
| 2R | A 42 C | 3 / 06 |
| 3A - 3C | A 43 D | 1 / 00 |
| 3R | A 43 D | 1 / 02 |
| 3R | A 43 D | 1 / 04 |
| 3R | A 61 B | 5 / 107 |
| 4 | A 43 D | 1 / 00 |
| 5 | A 43 D | 8 / 28 |
| 6 | A 43 D | 1 / 00 |
| 7 | A 41 H | 1 / 00 |
| 7 | A 41 H | 21 / 00 |
| 7 | A 41 H | 23 / 00 |
| 8 | A 41 H | 1 / 04 |
| 9A | A 41 H | 9 / 02 |
| 9A | A 41 H | 23 / 00 |
| 9R | A 41 H | 1 / 04 |
| 9R | A 41 H | 23 / 00 |
| 10 | A 41 H | 1 / 00 |
| 10 | A 41 H | 21 / 00 |
| 11 | A 41 H | 1 / 00 |
| 11 | A 42 C | 3 / 06 |
| 12 - 14 | A 41 H | 3 / 00 |
| 15 | A 41 H | 1 / 02 |
| 15 | A 41 H | 1 / 10 |
| 15 | A 41 H | 3 / 04 |
| 16 | A 41 H | 1 / 00 |
| 16 | A 42 C | 3 / 06 |
| 17A | A 41 H | 3 / 00 |
| 17R | A 41 H | 3 / 00 |
| 17R | A 42 C | 1 / 00 |
| 18.1 - 18.2 | B 43 L | 13 / 00 |
| 18.3 | B 43 L | 13 / 14 |
| 19.1 - 19.3 | B 43 L | 13 / 24 |
| 20.1 - 20.2 | B 43 L | 13 / 16 |
| 20.3 | B 43 L | 13 / 14 |
| 20.4 | B 43 L | 13 / 18 |
| 21.1 - 21.4 | B 43 L | 9 / 00 |
| 22 | B 43 L | 9 / 00 |
| 22 | B 43 L | 13 / 10 |
| 23.01 - 23.05 | B 43 L | 13 / 10 |
| 23.06 | B 43 L | 13 / 12 |
| 23.07 - 25.5 | B 43 L | 13 / 10 |
| 26 - 27.01 | B 43 L | 9 / 00 |
| 26 - 27.01 | B 43 L | 11 / 00 |
| 27.02 | B 43 L | 9 / 02 |
| 27.03 - 27.033 | B 43 L | 9 / 04 |
| 27.04 - 27.07 | B 43 L | 9 / 00 |
| 27.08 | B 43 L | 11 / 02 |
| 27.09 | B 43 L | 11 / 06 |
| 27.1 | B 43 L | 9 / 00 |
| 27.11 | B 43 L | 11 / 00 |
| 27.12 | B 23 Q | 35 / 00 |
| 27.12 | B 43 L | 13 / 10 |
| 28 - 29 | B 43 L | 9 / 00 |
| 28 - 29 | B 43 L | 11 / 00 |
| 30.1 | B 43 L | 11 / 00 |
| 30.2 - 31 | B 43 L | 11 / 04 |
| 32.1 - 33 | B 43 L | 13 / 00 |
| 34 - 39.2 | B 41 G | 3 / 00 |
| 34 - 39.2 | B 43 K | 27 / 08 |
| 34 - 39.2 | B 43 L | 13 / 00 |
| 40 | B 43 L | 13 / 24 |
| 41.1 - 43 | B 43 L | 13 / 02 |
| 44 | B 43 K | 27 / 00 |
| 45 | B 41 G | 3 / 00 |
| 45 | B 43 K | 27 / 08 |
| 121 - 122 | G 01 B | 5 / 26 |
| 121 - 122 | G 01 B | 11 / 28 |
| 121 - 122 | G 01 B | 13 / 20 |
| 121 - 122 | G 01 B | 21 / 28 |
| 123 | G 01 B | 7 / 32 |
| 124 | G 01 B | 5 / 26 |
| 124 | G 01 B | 11 / 28 |
| 124 | G 01 B | 13 / 20 |
| 124 | G 01 B | 21 / 28 |
| 193 | G 01 B | 3 / 14 |
| 194 | E 04 F | 21 / 00 |
| 194 | E 06 B | 3 / 00 |
| 195 | A 01 L | 11 / 00 |
| 196 | B 24 B | 53 / 00 |
| 196 | G 01 B | 3 / 22 |
| 197 | B 27 G | 17 / 08 |
| 197 | E 05 B | 17 / 06 |
| 199B | G 01 B | 5 / 00 |
| 199R | G 01 B | 3 / 00 |
| 199R | G 01 B | 5 / 16 |
| 199R | G 01 B | 5 / 20 |
| 200 | A 61 B | 3 / 10 |
| 201 | G 01 B | 5 / 20 |
| 202 | B 23 D | 63 / 00 |
| 202 | G 01 B | 5 / 20 |
| 203 | G 01 B | 5 / 20 |
| 203 | G 01 B | 5 / 24 |
| 203.1 | G 04 D | 7 / 08 |
| 203.11 | B 61 K | 9 / 12 |
| 203.11 | G 01 B | 3 / 14 |
| 203.12 - 203.21 | G 01 B | 5 / 24 |
| 203.12 - 203.21 | G 01 B | 7 / 30 |
| 203.12 - 203.21 | G 01 B | 11 / 26 |
| 203.12 - 203.21 | G 01 B | 13 / 18 |
| 203.12 - 203.21 | G 01 B | 21 / 22 |
| 227 | G 01 C | 15 / 00 |
| 228 | G 01 B | 11 / 275 |
| 229 - 231 | F 41 G | 3 / 24 |
| 232 | G 01 C | 21 / 00 |
| 232 | G 01 C | 23 / 00 |
| 262 | G 01 C | 1 / 08 |
| 262 | G 01 C | 3 / 00 |
| 262 | G 01 C | 5 / 00 |
| 262 | G 01 C | 9 / 00 |
| 262 | G 01 C | 15 / 00 |
| 262 | G 01 C | 21 / 00 |
| 263 | A 63 B | 69 / 36 |
| 264 | B 60 D | 1 / 36 |
| 265 | F 41 G | 1 / 00 |
| 266 | G 01 B | 13 / 02 |
| 266 | G 01 C | 3 / 00 |
| 267 | G 01 C | 1 / 00 |
| 267 | G 01 C | 1 / 02 |
| 267 | G 01 C | 3 / 02 |
| 268 | G 01 C | 17 / 34 |
| 269 - 271 | G 01 C | 17 / 34 |
| 269 - 271 | G 01 C | 21 / 02 |
| 269 - 271 | G 04 B | 49 / 00 |
| 272 - 273 | G 01 C | 1 / 00 |
| 272 - 273 | G 01 C | 3 / 00 |
| 272 - 273 | G 01 C | 17 / 00 |
| 274 | G 01 C | 21 / 22 |
| 275G | G 01 C | 1 / 00 |
| 275G | G 01 C | 19 / 38 |
| 275R | G 01 C | 1 / 04 |
| 275R | G 01 C | 3 / 00 |
| 275R | G 01 C | 5 / 00 |
| 275R | G 01 C | 23 / 00 |
| 276 - 280 | G 01 C | 3 / 00 |
| 281 - 285 | G 01 C | 1 / 00 |
| 281 - 285 | G 01 C | 1 / 02 |
| 281 - 285 | G 01 C | 15 / 10 |
| 286 | G 01 C | 15 / 00 |
| 287 | E 01 B | 29 / 04 |
| 288 | G 01 B | 5 / 00 |
| 289 | G 01 C | 15 / 00 |
| 290 - 292 | G 01 C | 5 / 00 |
| 293 | G 01 C | 15 / 02 |
| 293 | G 01 C | 15 / 06 |
| 294 | G 01 C | 15 / 06 |
| 295 | G 01 C | 15 / 08 |
| 296 | G 01 C | 15 / 00 |
| 297 - 298 | F 41 G | 1 / 38 |
| 297 - 298 | F 41 G | 1 / 42 |
| 299 | G 01 C | 1 / 02 |
| 300 | E 21 B | 47 / 022 |
| 301 | G 01 C | 9 / 00 |
| 301 | G 01 C | 17 / 00 |
| 301 | G 01 C | 19 / 00 |
| 302 | E 21 B | 47 / 02 |
| 303 | G 01 C | 9 / 26 |
| 303 | G 01 C | 17 / 38 |
| 303 | G 01 C | 19 / 04 |
| 304 - 314 | E 21 B | 47 / 022 |
| 315 | E 21 B | 47 / 06 |
| 316 | G 01 C | 19 / 36 |
| 317D | G 01 C | 17 / 38 |
| 317D | G 01 C | 19 / 36 |
| 317R | G 01 C | 19 / 36 |
| 317R | G 01 C | 19 / 38 |
| 317R | G 05 D | 3 / 12 |
| 318 | G 01 C | 19 / 00 |
| 319 | G 01 C | 17 / 18 |
| 320 - 323 | G 01 C | 19 / 00 |
| 324 - 327 | G 01 C | 19 / 38 |
| 328 - 330 | G 01 C | 19 / 00 |
| 331 | G 01 D | 1 / 00 |
| 332 | G 01 B | 21 / 00 |
| 333 | B 23 B | 49 / 00 |
| 333 | B 23 Q | 17 / 00 |
| 333 | B 60 K | 35 / 00 |
| 333 | B 60 K | 37 / 00 |
| 334 | B 23 B | 45 / 14 |
| 334 | B 25 B | 29 / 00 |
| 334 | F 41 C | 27 / 00 |
| 334 | G 03 B | 17 / 06 |
| 335 - 337 | G 01 B | 13 / 18 |
| 335 - 337 | G 01 B | 21 / 22 |
| 338 | E 01 B | 35 / 02 |
| 339 | G 01 C | 9 / 00 |
| 340 - 343 | G 01 B | 21 / 00 |
| 344 - 346 | G 01 C | 9 / 00 |
| 344 - 346 | G 01 C | 17 / 00 |
| 347 | G 01 C | 9 / 02 |
| 347 | G 01 C | 9 / 28 |
| 347 | G 01 C | 17 / 18 |
| 348 - 348.2 | G 01 C | 9 / 32 |
| 348 - 348.2 | G 01 C | 17 / 20 |
| 349 | G 01 C | 9 / 00 |
| 349 | G 01 C | 17 / 14 |
| 350 | G 01 C | 9 / 08 |
| 350 | G 01 C | 17 / 18 |
| 351 | G 01 C | 9 / 00 |
| 352 | G 01 C | 17 / 00 |
| 353 | G 01 C | 9 / 00 |
| 354 | G 01 C | 9 / 00 |
| 354 | G 01 C | 17 / 00 |
| 355D | G 01 C | 17 / 00 |
| 355R | G 01 C | 17 / 00 |
| 355R | G 01 C | 17 / 04 |
| 355R | G 01 C | 17 / 30 |
| 356 - 359 | G 01 C | 17 / 38 |
| 360 | G 01 C | 17 / 26 |
| 361 - 362 | G 01 C | 17 / 28 |
| 363K - 363Q | G 01 C | 17 / 26 |
| 363R | G 01 C | 17 / 00 |
| 363R | G 01 C | 17 / 26 |
| 363R | G 01 C | 17 / 36 |
| 363Y | G 01 C | 17 / 20 |
| 364 | G 01 C | 17 / 08 |
| 365 | G 01 C | 9 / 10 |
| 366.11 - 366.27 | G 01 C | 9 / 06 |
| 366.11 - 366.27 | G 01 C | 15 / 10 |
| 367 | G 01 C | 5 / 04 |
| 367 | G 01 C | 9 / 22 |
| 368 - 376 | G 01 C | 9 / 00 |
| 377 - 378 | G 01 C | 9 / 20 |
| 379 | G 01 C | 9 / 24 |
| 380 | G 01 C | 9 / 30 |
| 381 - 383 | G 01 C | 9 / 24 |
| 384 - 388 | G 01 C | 9 / 28 |
| 389 | G 01 C | 9 / 24 |
| 390 | G 01 C | 9 / 36 |
| 391 | G 01 C | 9 / 12 |
| 392 - 394 | G 01 C | 15 / 10 |
| 395 | G 01 C | 9 / 16 |
| 396 | G 01 C | 9 / 12 |
| 397 | G 01 C | 9 / 14 |
| 398 - 400 | G 01 C | 9 / 12 |
| 401 | G 01 C | 9 / 04 |
| 402 | G 01 C | 9 / 12 |
| 403 | B 43 L | 7 / 00 |
| 404 - 410 | B 43 L | 13 / 00 |
| 404 - 410 | G 01 C | 15 / 10 |
| 411 | B 43 L | 7 / 00 |
| 412 | G 01 B | 5 / 24 |
| 412 | G 01 B | 13 / 18 |
| 413 | B 43 L | 7 / 00 |
| 413 | B 44 D | 3 / 00 |
| 414 | B 44 D | 3 / 38 |
| 415 - 417 | B 43 L | 7 / 10 |
| 418 - 426 | B 43 L | 7 / 10 |
| 418 - 426 | B 43 L | 13 / 00 |
| 427 - 429 | B 43 L | 7 / 00 |
| 427 - 429 | B 43 L | 13 / 00 |
| 430 - 431 | A 47 B | 27 / 00 |
| 430 - 431 | A 47 B | 85 / 02 |
| 430 - 431 | B 43 L | 5 / 00 |
| 430 - 431 | B 43 L | 7 / 00 |
| 430 - 431 | B 43 L | 9 / 00 |
| 430 - 431 | B 43 L | 11 / 00 |
| 430 - 431 | B 43 L | 13 / 00 |