IPC Revision WG – Definition Project USPTO Rapporteur Proposal
Project: D066 Class/subclass: C12S Date : 21/04/2009
Title - C12S
Processes using enzymes or micro-organisms to liberate, separate or purify a pre-existing compound or composition; Processes using enzymes or micro-organisms to treat textiles or to clean solid surfaces of materials Definition statement
This subclass covers: Processes using enzymes or micro-organisms to free, separate, or purify a pre-existing compound or composition such as: Treatment of petroleum oils, shale oils or sand oils, e.g. desulfurising; Treatment of animal or plant materials or micro-organisms, e.g. recovery or purification of carbohydrate or proteinaceous materials, or gyceridic oils, fats, ester-type waxes, or fatty acids, removal of nucleic acids from cells, treatment of blood or animal secretions or organs; Treatment of emulsions, gases, or foams, e.g. removing odors or contaminants from gases; and Treatment of hides, e.g. depilating;
Processes using enzymes or micro-organisms to clean or treat such as: Cleaning solid surfaces of materials, e.g. cleaning medical instruments or semiconductors; and Treatment of textiles, e.g. cleaning, enhancing wettability and absorbency.
Relationship between large subject matter areas
This subclass covers processes already provided for in: Section A: A21, A23, A61L, A62D Section B: B01D, B08B, B09C Section C: C01, C05F, C08, C09B, C09H, C10G, C13, C14C, C21B, C22B, C23F, C23G Section D: D01C, D01F, D06L, D06M, D06P, D21C, D21H Section F: F24F, F24J, F26B
Section H: H01M
Attention is drawn to Notes (1) to (3) following the title of class C12. This subclass is intended to provide a basis for a complete search to be made with respect to the subject matter defined by the subclass title and, therefore, all relevant information is classified in this subclass, even if classified elsewhere. It is desirable to add the indexing codes of subclass C12R for micro-organisms which are considered to be of interest for search.
References relevant to classification in this subclass
This subclass does not cover: Biological treatment of water, waste water, or sewage Biological treatment of sludge Processes using enzymes or micro-organisms to separate optical isomers from a racemic mixture C02F3/00 C02F11/02 C12P41/00
Informative references
NONE.
Special rules of classification within this subclass
In the absence of an indication to the contrary, classification is made in the last appropriate place. The classification symbols of this subclass are not listed first when assigned to patent documents.
Glossary of terms
In this subclass, the following terms or expressions are used with the meaning indicated: Enzyme proteinaceous materials, which cause a chemical change in a starting material without being consumed in the reaction consists of bacteria, actinomycetales, fungi (e.g., yeast), virus, human, animal, or plant cells, tissues, protozoa, and unicellular algae.
Micro-organism
Synonyms and Keywords
NONE.