Class 431 COMBUSTION
| Printable Version[PDF] See notes regarding proper use of US-to-IPC Concordances. | ||
| U.S. Subclass | IPC8 Subclass | IPC8 Group |
|---|---|---|
| 1 | F 23 C | 15 / 00 |
| 2 | C 10 L | 1 / 12 |
| 2 | F 23 L | 7 / 00 |
| 3 | C 10 L | 10 / 00 |
| 4 | F 23 J | 7 / 00 |
| 5 | F 23 D | 14 / 00 |
| 5 | F 23 G | 7 / 08 |
| 5 | F 23 J | 15 / 00 |
| 6 | F 23 N | 5 / 20 |
| 6 | F 23 N | 5 / 22 |
| 7 | F 23 D | 3 / 40 |
| 8 | F 23 C | 5 / 00 |
| 8 | F 23 M | 3 / 02 |
| 9 | F 23 M | 3 / 00 |
| 10 | F 23 M | 3 / 04 |
| 11 | F 23 D | 11 / 44 |
| 11 | F 23 L | 15 / 00 |
| 12 | F 23 N | 1 / 02 |
| 13 | F 23 D | 5 / 12 |
| 14 | F 23 N | 5 / 26 |
| 15 - 16 | F 23 N | 5 / 24 |
| 17 | F 23 Q | 2 / 48 |
| 18 | A 01 G | 13 / 06 |
| 19 | F 23 N | 1 / 02 |
| 20 | F 23 N | 3 / 00 |
| 21 | F 23 N | 5 / 02 |
| 22 - 23 | F 23 N | 5 / 24 |
| 24 | F 23 N | 5 / 20 |
| 24 | F 23 Q | 23 / 00 |
| 25 | F 23 N | 5 / 12 |
| 25 | F 23 Q | 23 / 00 |
| 26 | F 23 N | 5 / 08 |
| 26 | F 23 Q | 23 / 00 |
| 27 - 31 | F 23 N | 5 / 00 |
| 32 | F 23 N | 5 / 24 |
| 33 | F 23 N | 5 / 00 |
| 34 | F 23 D | 3 / 26 |
| 35 | F 23 N | 5 / 00 |
| 36 - 41 | F 23 N | 1 / 00 |
| 42 - 61 | F 23 Q | 9 / 08 |
| 62 - 63 | F 23 N | 5 / 00 |
| 64 | F 23 D | 5 / 14 |
| 65 | F 23 D | 5 / 16 |
| 66 - 67 | F 23 N | 5 / 00 |
| 68 | F 23 N | 5 / 24 |
| 69 - 78 | F 23 N | 5 / 00 |
| 79 | F 23 N | 5 / 08 |
| 80 | F 23 N | 5 / 10 |
| 81 - 87 | F 23 N | 5 / 00 |
| 88 | F 23 N | 5 / 24 |
| 89 - 90 | F 23 N | 1 / 02 |
| 91 | F 41 H | 9 / 02 |
| 99 | F 21 V | 37 / 00 |
| 100 | F 21 H | 1 / 00 |
| 101 - 113 | F 21 H | 1 / 00 |
| 114 | F 23 M | 5 / 00 |
| 115 - 116 | F 23 C | 9 / 00 |
| 117 - 119 | F 23 D | 5 / 12 |
| 120 | F 23 D | 3 / 28 |
| 121 - 123 | F 23 D | 11 / 38 |
| 121 - 123 | F 23 D | 14 / 50 |
| 124 | F 23 Q | 2 / 38 |
| 125 - 127 | F 23 Q | 2 / 32 |
| 128 | F 23 Q | 7 / 00 |
| 129 - 141 | F 23 Q | 2 / 08 |
| 142 - 143 | F 23 Q | 2 / 00 |
| 144 - 152 | F 23 Q | 25 / 00 |
| 153 - 155 | F 23 D | 11 / 36 |
| 156 | F 21 V | 35 / 00 |
| 157 | F 23 L | 17 / 00 |
| 158 | F 23 C | 3 / 00 |
| 159 | F 23 D | 11 / 00 |
| 160 | F 23 D | 11 / 36 |
| 161 - 167 | F 23 D | 11 / 44 |
| 168 | F 23 D | 11 / 04 |
| 169 | F 23 D | 11 / 08 |
| 170 | F 27 D | 1 / 04 |
| 171 - 172 | F 23 M | 9 / 06 |
| 173 | F 23 C | 5 / 32 |
| 174 | F 23 C | 5 / 00 |
| 175 - 176 | F 23 C | 5 / 28 |
| 177 - 181 | F 23 C | 5 / 08 |
| 182 - 185 | F 23 M | 9 / 00 |
| 186 | F 23 C | 5 / 06 |
| 187 | F 23 C | 7 / 00 |
| 188 | F 23 M | 9 / 00 |
| 189 | F 23 C | 5 / 06 |
| 190 | F 23 L | 9 / 00 |
| 191 - 194 | F 24 C | 3 / 10 |
| 195 - 201 | F 23 D | 5 / 00 |
| 202 | F 23 G | 7 / 08 |
| 203 - 206 | F 23 D | 11 / 00 |
| 207 - 248 | F 23 D | 11 / 44 |
| 249 | F 23 C | 3 / 00 |
| 250 | A 01 H | 5 / 02 |
| 251 | F 21 V | 37 / 00 |
| 252 | A 61 C | 13 / 20 |
| 253 | F 23 Q | 2 / 32 |
| 254 | F 23 Q | 1 / 04 |
| 254 | F 23 Q | 7 / 12 |
| 255 - 257 | F 23 Q | 7 / 12 |
| 258 | F 23 Q | 7 / 06 |
| 259 - 260 | F 23 Q | 7 / 08 |
| 261 | F 23 Q | 3 / 00 |
| 262 | F 23 Q | 7 / 08 |
| 263 | F 23 Q | 7 / 06 |
| 264 - 266 | F 23 Q | 3 / 00 |
| 267 | F 23 Q | 1 / 00 |
| 268 | F 23 Q | 11 / 00 |
| 269 | A 24 F | 27 / 14 |
| 270 | F 23 Q | 1 / 02 |
| 271 - 272 | A 24 F | 27 / 14 |
| 273 - 277 | F 23 Q | 1 / 02 |
| 278 - 279 | F 23 Q | 9 / 00 |
| 280 - 281 | F 23 Q | 9 / 08 |
| 282 - 285 | F 23 Q | 9 / 00 |
| 286 | F 23 D | 14 / 58 |
| 287 | F 23 Q | 13 / 00 |
| 288 - 297 | F 23 D | 3 / 16 |
| 298 - 300 | F 23 D | 3 / 02 |
| 301 | F 23 D | 3 / 34 |
| 302 - 303 | F 23 D | 3 / 02 |
| 304 | F 23 D | 3 / 28 |
| 305 | F 23 D | 3 / 32 |
| 306 | F 23 D | 3 / 28 |
| 307 - 308 | F 23 D | 3 / 32 |
| 309 - 314 | F 23 D | 3 / 04 |
| 315 - 318 | F 23 D | 3 / 28 |
| 319 | F 23 D | 3 / 02 |
| 320 | F 23 D | 3 / 24 |
| 321 - 325 | F 23 D | 3 / 18 |
| 326 | F 23 D | 3 / 40 |
| 327 | F 23 Q | 13 / 04 |
| 328 | F 23 D | 14 / 12 |
| 329 | F 23 D | 14 / 14 |
| 330 | F 23 D | 5 / 06 |
| 330 | F 23 D | 7 / 00 |
| 331 - 342 | F 23 D | 5 / 02 |
| 343 | F 23 D | 11 / 36 |
| 343 | F 23 D | 14 / 46 |
| 344 | F 23 D | 14 / 28 |
| 345 | F 23 D | 14 / 46 |
| 346 | F 23 D | 14 / 82 |
| 347 - 348 | F 23 D | 14 / 12 |
| 349 | F 23 D | 14 / 58 |
| 350 | F 23 D | 14 / 46 |
| 351 | F 23 C | 7 / 00 |
| 352 | F 23 C | 6 / 04 |
| 353 | F 23 C | 7 / 00 |
| 354 - 355 | F 23 D | 14 / 62 |
| 356 | F 24 C | 15 / 10 |
| 357 - 365 | F 21 K | 5 / 00 |
| 357 - 365 | F 21 K | 5 / 08 |