Cooperative Patent Classification

Indent Level

Version: 2016.11
CPC
COOPERATIVE PATENT CLASSIFICATION
C23D
ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS (chemical composition of the enamels C03C) [2013-01]
C23D 1/00
Melting or fritting the enamels; Apparatus or furnaces therefor [2013-01]
C23D 1/02
.
Granulating the melt; Drying the granules [2013-01]
Coating with the enamels [2013-01]
C23D 3/00
Chemical treatment of the metal surfaces prior to coating (cleaning and de-greasing of metallic objects C23G) [2013-01]
C23D 5/00
Coating with enamels or vitreous layers {(including applying fused refractory layers C23C 4/10, C23C 24/10)} [2013-01]
C23D 5/005
.
{by a method specially adapted for coating special objects} [2013-01]
C23D 5/02
.
by wet methods [2013-01]
C23D 5/04
.
by dry methods [2013-01]
C23D 5/06
.
producing designs or letters [2013-01]
C23D 5/08
.
Applying enamels non-uniformly over the surface [2013-01]
C23D 5/10
.
{with refractory materials} [2015-10]
WARNING

C23D 7/00
Treating the coatings, e.g. drying before burning [2013-01]
Firing the enamels [2013-01]
C23D 9/00
Ovens specially adapted for firing enamels [2013-01]
C23D 9/02
.
Non-electric muffle furnaces [2013-01]
C23D 9/04
.
Non-electric tunnel ovens [2013-01]
C23D 9/06
.
Electric furnaces [2013-01]
C23D 9/08
.
Supporting devices for burning-bars [2013-01]
C23D 9/10
.
Loading or unloading devices [2013-01]
C23D 11/00
Continuous processes; Apparatus therefor [2013-01]
After-treatment [2013-01]
C23D 13/00
After-treatment of the enamelled articles [2013-01]
C23D 13/02
.
Removing defects by local re-melting of the enamel; Adjusting the shape [2013-01]
C23D 15/00
Joining enamelled articles to other enamelled articles by processes involving an enamelling step [2013-01]
C23D 17/00
De-enamelling [2013-01]