1. CPC Sections
  2. CPC Section C
  3. CPC Class C22
  4. CPC Subclass C22F
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CPC
COOPERATIVE PATENT CLASSIFICATION
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C22F
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS (surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by this subclass, C23F 17/00) [2018-08]
WARNING

  • In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.
C22F 1/00
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working (apparatus for mechanical working of metal B21, B23, B24) [2013-01]
C22F 1/002
.
{by rapid cooling or quenching; cooling agents used therefor} [2013-01]
C22F 1/004
.
{Heat treatment in fluid bed} [2013-01]
C22F 1/006
.
{Resulting in heat recoverable alloys with a memory effect} [2013-01]
C22F 1/008
.
{Using a protective surface layer} [2013-01]
C22F 1/02
.
in inert or controlled atmosphere or vacuum (adjusting the composition of the atmosphere C21D 1/76) [2013-01]
C22F 1/04
.
of aluminium or alloys based thereon [2013-01]
C22F 1/043
. .
of alloys with silicon as the next major constituent [2013-01]
C22F 1/047
. .
of alloys with magnesium as the next major constituent [2013-01]
C22F 1/05
. .
of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions [2013-01]
C22F 1/053
. .
of alloys with zinc as the next major constituent [2013-01]
C22F 1/057
. .
of alloys with copper as the next major constituent [2013-01]
C22F 1/06
.
of magnesium or alloys based thereon [2013-01]
C22F 1/08
.
of copper or alloys based thereon [2013-01]
C22F 1/10
.
of nickel or cobalt or alloys based thereon [2013-01]
C22F 1/11
.
of chromium or alloys based thereon [2013-01]
C22F 1/12
.
of lead or alloys based thereon [2013-01]
C22F 1/14
.
of noble metals or alloys based thereon [2013-01]
C22F 1/16
.
of other metals or alloys based thereon [2013-01]
C22F 1/165
. .
{of zinc or cadmium or alloys based thereon} [2013-01]
C22F 1/18
. .
High-melting or refractory metals or alloys based thereon [2017-08]
C22F 1/183
. . .
{of titanium or alloys based thereon} [2013-01]
C22F 1/186
. . .
{of zirconium or alloys based thereon} [2013-01]
C22F 3/00
Changing the physical structure of non-ferrous metals or alloys by special physical methods, e.g. treatment with neutrons [2013-01]
C22F 3/02
.
by solidifying a melt controlled by supersonic waves or electric or magnetic fields [2013-01]