What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.
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Class Number: 518 Class Title: CHEMISTRY: FISCHER-TORPSCH PROCESSES; OR PURIFICATION OR RECOVERY OF PRODUCTS THEREOF Subclass Subclass Number Title 700 LIQUID PHASE FISCHER-TROPSCH REACTION 701 .Rhodium containing catalyst utilized 702 WITH PRELIMINARY REACTION TO FORM HYDROGEN OR A CARBON OXIDE 703 .Gaseous oxygen utilized in the preliminary reaction 704 .Water utilized in the preliminary reaction 705 TREATMENT OF FEED OR RECYCLE STREAM 706 PLURAL ZONES EACH HAVING A FISCHER-TROPSCH REACTION 707 .Diverse catalysts utilized in at least two zones 708 .Water utilized 709 INCLUDING REGENERATION OF CATALYST 710 .Solvent utilized 711 WATER UTILIZED DURING THE FISCHER-TROPSCH STEP OF THE PROCESS 712 TEMPERATURE CONTROL OR REGULATION OF THE FISCHER-TROPSCH REACTION 713 GROUP IB METAL CONTAINING CATALYST UTILIZED FOR THE FISCHER-TROPSCH REACTION (i.e., Cu, Ag, or Au) 714 GROUP VIB METAL CONTAINING CATALYST UTILIZED FOR THE FISCHER-TROPSCH REACTION (i.e., Cr, Mo, or W) 715 GROUP VIII METAL CONTAINING CATALYST UTILIZED FOR THE FISCHER-TROPSCH REACTION (i.e., Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, or Pt) 716 .Rhodium containing catalyst 717 .Group IA or IIA light metal containing material utilized during the Fischer Tropsch step of the process (i.e., Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, or Ba) 718 ..In the form of a salt 719 .Iron containing catalyst 720 ..Pretreatment of the catalyst 721 ..The catalyst contains a metal in addition to the iron, or another material utilized contains a metal other than iron (e.g., as a promoter, retarder, etc.) 722 ADSORPTION WITH A SOLID MATERIAL 723 SALT CONTAINING EXTRACTANT UTILIZED 724 SOLVENT EXTRACTION UTILIZED 725 .Alcohol containing extractant utilized 726 HYDROGENATION WITH GASEOUS HYDROGEN TO PURIFY OR RECOVER 727 FORMING SALTS OR OXIMES OF OXYGEN CONTAINING COMPOUNDS TO PURIFY OR RECOVER 728 MISCELLANEOUS