The various uses of fats for different purposes is classified in corresponding places (see references).

Separating fats/oils from source.

Processes for facilitating separation of fats/oils from sources.

Pretreatment with objective of facilitating separation essentially when enzyme mediated, either via direct addition or indirectly via microbes.

Separating from fats/oils sources which have cell walls.

Facilitating separation using extrusion, rollers, expressers, etc.

Facilitating separation by raising temperature or not cooling.

Separating from fats/oil sources using extractants (typically fluids)

Separating from fats/oil sources when source and extractant move in opposite directions and use of extruders in combination with added extractant.

Separating from fats/oil sources with the aid of super- of near -critical fluids

Separating from fats/oil sources with the aid of sound above 20kHz.

All post separation treatment of extraction media.

Separating from fats/oil sources with direct application of heat.

Separating from fats/oil sources with application of heat via water or solutions.

Separating from fats/oil sources with application of heat via gaseous water.

Undefined processes for removing undesired material from fats/oils.

Processes for removing undesired material from fats/oil where a combination of processes is required.

Processes for removing undesired material from fats/oil where process is essentially enzyme mediated, either via direct addition or indirectly via microbes.

Processes for removing undesired material from fats/oil where process is based energy which has a frequency, e.g. sound or radiation.

Processes for removing undesired material from fats/oil where process uses fluids.

Processes for removing undesired material from fats/oil where process depends on size retention.

Processes for removing undesired material from fats/oil where process depends chemical change.

Processes for removing undesired material from fats/oil where process depends chemical change influenced by acidic material or pH<7.

Processes for removing undesired material from fats/oil where process depends chemical change influenced by alkaline material or pH>7.

Processes for removing undesired material from fats/oil where process depends chemical change influenced by reactions involving removal of electrons, e.g. peroxy compounds or hypochlorites.

Processes for removing undesired material from fats/oil where process depends physico-chemical attraction to solids, e.g. zeolites.

Classification is also made in group B01D 15/08 insofar as subject matter of general interest relating to chromatography is concerned.

Processes for removing undesired material from fats/oil where process depends on change to gaseous phase, e.g. short path or wiped film.

Processes for removing undesired material from fats/oil where process depends change to gaseous phase using steam as boiling point depressant.

Processes for removing undesired material from fats/oil where process depends on purely physical forces, e.g. gravity, decantation or centrifugation.

Prevention of deterioration of oils/fats by addition of substances.

In groups C11B 5/0007 - C11B 5/0092, in the absence of an indication to the contrary, a composition is classified in the last appropriate place.

Prevention of deterioration of oils/fats by addition of carbon containing substances generally.

Prevention of deterioration of oils/fats by addition of substances having only C and H constituents.

Prevention of deterioration of oils/fats by addition of O containing substances, generally organic.

Prevention of deterioration of oils/fats by addition of substances containing COOH groups or anions, esters or salts thereof, e.g. acetate or fatty acids.

Prevention of deterioration of oils/fats by addition of substances containing hydroxy group (including deprotonated) attached to aromatic ring structure , e.g. quinones, tocols or polyphenols.

Prevention of deterioration of oils/fats by addition of nitrogen containing substances, e.g. N₂, peptides or amino acids.

Prevention of deterioration of oils/fats by addition of substances with a free amine or imine groups.

Prevention of deterioration of oils/fats by addition of substances with free amide or imide group.

e.g. quinolines or pyroles.

e.g. chloro, thio or methio compounds.

e.g. butyltin, ferrocene or silica hydrides.

e.g. rosemary, sage, garlic or tea.

Prevention of deterioration of oils/fats by addition of known mixtures of substances.

Separation where the process is undefined.

In groups C11B 7/0008 - C11B 7/0091, in the absence of an indication to the contrary an invention is classified in the last appropriate place.

Separation of oils/fats where the process uses fluids and differential solubilities/miscibilities.

e.g. hexanes.

e.g. acetone, carboyxlic acid derivatives or alcohols.

e.g. nitropropane or sulfoxides.

e.g. blends or mixtures.

e.g. near or super-critical fluids.

e.g. solvent gradient systems or gas liquid mixtures.

e.g bi- or tri-phasic systems.

Separation of oils/fats where the process uses heating or cooling and exploits, e.g. winterizing or crystallizing.

Separation of oils/fats where the process uses separation additives, e.g. urea, chelation, salts or complexation.

e.g. wetting agents or pressure.

Perfume compositions otherwise not falling under the subclasses C11B 9/0003 - C11B 9/0096; Essential oil compositions; testing methods for perfumes which are not characterized by the equipment used, e.g. sniffer tests.

Perfume compounds or compositions described as being suitable for flavouring applications are also classified under A23L 27/00 - essential oils described as being suitable for flavouring applications are also classified under A23L 27/12 or A23L 27/13.

In C11B 9/0003 - C11B 9/0096, classify each compound under one class only, according to last place rule. All exemplified compounds to be classified.

Reaction products of fragrant compounds with further chemical compounds, adapted to release the fragrant compound when later activated by e.g. heat.

For pro-perfumes, the fragrance-generating precursor compound according to one of the classes C11B 9/0007 - C11B 9/0069 should also be classified.

Fragrant compounds with no rings.

Aliphatic sulfur compounds, e.g. mercaptans or thiols.

Aliphatic compounds containing an oxygen atom, e.g. alcohols, ethers, aldehydes or ketones.

Aliphatic compounds containing nitrogen atoms, e.g. amines or aminoalcohols.

Aliphatic ring compounds, saturated or unsaturated, optionally with substituents bonded to the ring, these substituents may include heteroatoms, e.g. halogen atoms, hydroxy groups or ether linkages.

Compounds containing cyclopentane, cyclopentene, cyclobutane, cyclobutene or cyclopropane rings.

Cyclohexane or cyclohexene compounds.

Cycloheptane; Cycloheptene or larger ring compounds.

Naphthalene compounds.

Extraction of essential oils from raw materials using an organic solvent or an inorganic solvent, e.g. water or supercritical CO₂.

Specific cases of recovery and refining of non-glyceride material containing fatty acids.

Separating greasy materials, e.g. trap grease, yellow grease or used cooking oil from refuse, garbage or rubbish.

Recovery of fats, fatty oils or fatty acidsobtained as by-products of wood-cellulose process, e.g. rosin.

Recovery or refining of fats/oils from aqueous caustic refining by product.

Recovery of fats, fatty oils or fatty acids from used adhered substances, e.g from filter cake, bleaching earths.

Coagulating fatty oils, fats or waxes by non-chemical processes, e.g. prilling, coating.