C
SECTION C — CHEMISTRY AND METALLURGY
 C

Note(s)

Definitions for Section C:

  • Alkali metals: Li, Na, K, Rb, Cs, Fr
  • Alkaline earth metals: Ca, Sr, Ba, Ra
  • Lanthanides: elements with atomic numbers 57 to 71 inclusive
  • Rare earths: Sc, Y, Lanthanides
  • Actinides: elements with atomic numbers 89 to 103 inclusive
  • Refractory metals: Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W
  • Halogens: F, Cl, Br, I, At
  • Noble gases: He, Ne, Ar, Kr, Xe, Rn
  • Platinum group: Os, Ir, Pt, Ru, Rh, Pd
  • Noble metals: Ag, Au, Platinum group
  • Light metals: alkali metals, alkaline earth metals, Be, Al, Mg
  • Heavy metals: metals other than light metals
  • Iron group: Fe, Co, Ni
  • Non-metals: H, B, C, Si, N, P, O, S, Se, Te, noble gases, halogens
  • Metals: elements other than non-metals
  • Transition elements: elements with atomic numbers 21 to 30 inclusive, 39 to 48 inclusive, 57 to 80 inclusive, 89 upwards

  
CHEMISTRY
 C12
BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
 C12

Note(s)

  1. In the field of sub-classes C12M-C12Q, in the absence of an indication to the contrary, an invention is classified in the last appropriate place. [3]
  2. Within this class, viruses, undifferentiated plant or animal cells, protozoa and unicellular algae are considered as micro-organisms. Also, sub-cellular parts, unless specifically provided for, are classified with the whole cell. [3]
  3. Within this class, non-obligatory classifications may be given as additional information relating to the micro-organisms used by means of the symbols of sub-class C12R[3]
 C12C
BREWING OF BEER (cleaning of raw materials A23N; pitching and depitching machines, cellar tools C12L; propagating yeasts C12N 1/14; non-beverage ethanolic fermentation C12P 7/06)
 C12C 1/00
Preparation of malt
 C12C 1/02
·  Pretreatment of grains, e.g. washing, steeping
 C12C 1/04
·  Germinating; Drying
 C12C 1/06
·  ·  on single or multi-stage floors
 C12C 1/08
·  ·  in boxes or drums
 C12C 1/10
·  ·  Drying on fixed supports
 C12C 1/12
·  ·  Drying on moving supports
 C12C 1/14
·  Grain or malt turning apparatus
 C12C 1/16
·  After-treatment of malt, e.g. malt cleaning, detachment of the germ
 C12C 1/18
·  Preparation of malt extract or of special kinds of malt, e.g. caramel, black malt
 C12C 3/00
Treatment of hops (hop extraction C12C 9/02)
 C12C 3/02
·  Drying
 C12C 3/04
·  Conserving; Storing; Packing
 C12C 5/00
Other raw materials for the preparation of beer
 C12C 5/02
·  Additives for beer
 C12C 5/04
·  ·  Colouring additives
 C12C 7/00
Preparation of wort (malt extract C12C 1/18)
 C12C 7/02
·  Mixing malt with water
 C12C 7/04
·  Preparation of the mash
 C12C 7/06
·  ·  Mashing apparatus
 C12C 7/08
·  ·  ·  with a horizontal stirrer shaft
 C12C 7/10
·  ·  ·  with a vertical stirrer shaft
 C12C 7/12
·  ·  Cooling devices for the mash
 C12C 7/14
·  Clarifying wort (Läuterung)
 C12C 7/16
·  ·  by straining
 C12C 7/18
·  After-treatment of wort, e.g. sterilisation
 C12C 9/00
Methods specially adapted for the making of beerwort
 C12C 9/02
·  Beerwort treatment; Boiling with hops; Hop extraction (brewing devices C12C 13/00)
 C12C 9/04
·  Clarifying beerwort between hop boiling and cooling
 C12C 9/06
·  Cooling beerwort; Clarifying beerwort during or after the cooling
 C12C 9/08
·  After-treatment
 C12C 11/00
Fermentation processes for beer (preparation of wine C12G 1/00)
 C12C 11/02
·  Pitching yeast
 C12C 11/04
·  Fermentation of beerwort
 C12C 11/06
·  Acidifying the wort for ethanolic fermentation
 C12C 11/08 - 
C12C 11/22
( transferred to C12N 1/00, C12P 7/06 )
 C12C 11/24 - 
C12C 11/36
( transferred to C12N 1/00 )
 C12C 11/38
( transferred to C12P 7/06 )
 C12C 13/00
Brewing devices  [3]
 C12C 13/02
·  Brew kettles  [3]
 C12C 13/04
·  ·  heated with steam  [3]
 C12C 13/06
·  ·  heated with fire  [3]