Class 518 CHEMISTRY: FISCHER-TROPSCH PROCESSES; OR PURIFICATION OR RECOVERY OF PRODUCTS THEREOF
| Printable Version[PDF] See notes regarding proper use of US-to-IPC Concordances. | ||
| U.S. Subclass | IPC8 Subclass | IPC8 Group |
|---|---|---|
| 700 - 721 | C 07 C | 27 / 00 |
| 700 - 725 | C 07 C | 27 / 06 |
| 722 | C 07 C | 27 / 26 |
| 723 - 725 | C 07 C | 27 / 34 |
| 726 - 727 | C 07 B | 63 / 02 |
| 726 - 727 | C 07 C | 27 / 26 |
| 727 | C 07 C | 27 / 02 |
| 728 | C 07 C | 27 / 00 |
| 728 | C 07 C | 27 / 06 |