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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363-131 121-55A 14-.5
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Class Number: 201
Class Title: DISTILLATION: PROCESSES, THERMOLYTIC
Subclass Subclass
Number Title
1 WITH MEASURING, TESTING OR INSPECTING
2 WITH CLEANING OF APPARATUS
2.5 NON-MINERAL DISTILLAND WITH CATALYST OR CHEMICAL TREATMENT
OF VOLATILE COMPONENT
3 WITH PHYSICAL SEPARATION OF SOLID BY-PRODUCT FROM REMOVED
ADMIXTURE
4 .Gas or vapor containing mixture
5 AND SHAPING TO DESIRED FORM OR CONFIGURATION
6 .Prior to charging to carbonizing zone
7 WITH COMMINUTING
8 .Prior to charging to carbonizing zone
9 AND SURFACE TREATING MATERIAL TO REDUCE OR PREVENT AGGLOMERATING
OR FOAMING OR SWELLING DURING DISTILLATION
10 BY CONDUCTION USING PREHEATED CHARGE CONTAINER OR PREHEATED
INERT DISPARATE SOLID OR PREHEATED LIQUID
11 .Liquid is metal
12 .Particulate disparate solid
13 USING A CARBONIZATION PRODUCT AS INDIRECT HEAT SOURCE
14 .For heating the carbonaceous material
15 ..Including heat by burning of product
16 ...Solid product
17 AND REFINING CHAR, E.G., DESULFURIZING COKE
18 UTILIZING APPARATUS OF PARTICULAR COMPOSITION
19 APPLYING ELECTRICAL ENERGY DIRECTLY TO MATERIAL
20 ADDING DISPARATE NON-GASEOUS MATERIAL TO FEED
21 FEED OF TWO OR MORE CARBONACEOUS MATERIAL (AT LEAST THE
PREDOMINATE ONE BEING SOLID)
22 .Char containing
23 .Mineral oil containing
24 .Coals only
25 FEED OTHER THAN COAL, OIL SHALE OR WOOD
26 IN PARALLEL STAGES SIMULTANEOUSLY
27 INCLUDING BURNING OF VAPORIZED PRODUCT
28 SEQUENTIALLY REMOVING, TREATING AND RECYCLING A PRODUCT
29 .Removing and treating vapor
30 AND FRACTIONALLY CONDENSING VAPORS
31 FLUIDIZED BED
32 IN A MOVING BED
33 .Agitating
34 .Gravitating
35 CARBONIZING UNDER PNEUMATIC PRESSURE OR VACUUM
36 AND ADDING DISPARATE GASEOUS MATERIAL TO THE CARBONIZING ZONE
37 .Combustion gases
38 .Steam containing
39 QUENCHING CHAR WITH AN INERT MATERIAL
40 ARRANGING THE CARBONACEOUS MATERIAL IN THE CARBONIZING ZONE
41 MISCELLANEOUS
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* CROSS-REFERENCE ART COLLECTIONS
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42 PARTICLE SIZE
43 AN EXTRANEOUS, CYCLICALLY CIRCULATED, INERT HEATING GASS
44 PLURAL DISTINCT TEMPERATURE STAGES
45 DISTILLATE TREATMENT OR CONSERVATION