| 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 |
|---|---|---|
| 1 | B 65 H | 16 / 00 |
| 1 | B 65 H | 18 / 00 |
| 1 | B 65 H | 20 / 00 |
| 2 | B 65 H | 23 / 00 |
| 3 | B 65 H | 23 / 02 |
| 4 | B 65 H | 23 / 18 |
| 5 | G 03 D | 13 / 00 |
| 6 | B 65 H | 20 / 00 |
| 7 | B 65 H | 20 / 14 |
| 8 | B 65 H | 20 / 00 |
| 9 - 16 | B 23 Q | 15 / 00 |
| 9 - 16 | B 23 Q | 16 / 00 |
| 9 - 16 | B 65 H | 43 / 00 |
| 17 - 19 | B 23 Q | 15 / 00 |
| 17 - 19 | B 23 Q | 16 / 00 |
| 17 - 19 | B 65 H | 26 / 00 |
| 17 - 19 | B 65 H | 43 / 00 |
| 20 - 26 | B 23 Q | 15 / 00 |
| 20 - 26 | B 23 Q | 16 / 00 |
| 20 - 26 | B 65 H | 26 / 00 |
| 20 - 26 | B 65 H | 43 / 08 |
| 27 | B 65 H | 23 / 04 |
| 28 - 33 | B 65 H | 23 / 18 |
| 34 - 36 | B 65 H | 23 / 16 |
| 37 - 42 | B 65 H | 23 / 18 |
| 43 - 48 | B 23 Q | 15 / 00 |
| 43 - 48 | B 23 Q | 16 / 00 |
| 43 - 48 | B 65 H | 26 / 00 |
| 49 | G 03 B | 1 / 22 |
| 50 | G 11 B | 15 / 29 |
| 51 | G 03 B | 1 / 22 |
| 52 | G 03 B | 1 / 18 |
| 53 | B 65 H | 20 / 00 |
| 54 | G 03 B | 1 / 20 |
| 55 - 61 | G 03 B | 1 / 28 |
| 62 - 73 | G 03 B | 1 / 22 |
| 74 - 75 | G 03 B | 1 / 30 |
| 76 - 86 | G 03 B | 1 / 24 |
| 87 | G 03 B | 1 / 34 |
| 88 | B 65 H | 23 / 34 |
| 89 - 92 | G 03 B | 1 / 56 |
| 93 - 97.4 | B 65 H | 20 / 00 |
| 100 | B 21 D | 43 / 09 |
| 101 | B 41 J | 11 / 48 |
| 102 | B 23 B | 13 / 08 |
| 104 - 106 | F 26 B | 13 / 10 |
| 107 | D 06 B | 17 / 06 |
| 108 | B 23 K | 9 / 133 |
| 109 - 117 | B 65 H | 20 / 24 |
| 118.1 - 118.5 | B 65 H | 20 / 30 |
| 118.1 - 118.5 | G 11 B | 15 / 56 |
| 120 - 143 | B 65 H | 20 / 00 |
| 144 - 151 | B 65 H | 23 / 06 |
| 152 - 183 | B 65 H | 20 / 00 |
| 184 | G 03 B | 1 / 46 |
| 185 - 194 | B 65 H | 20 / 00 |
| 195 | B 65 H | 23 / 08 |
| 196.1 | B 65 H | 23 / 04 |
| 196.1 | G 03 B | 1 / 42 |
| 200 | B 65 H | 27 / 00 |
Regarding US-to-IPC Concordances [Concordances between US Patent Classification and the International Patent Classification Eighth Edition]: The USPC does not precisely concord to the IPC. Users of this Concordance must look at the IPC schedules to select an appropriate classification for the concept being classified.
This page is produced by the Office of Classification Support (Office of Patent Classification) for the Reference Tools Project.
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