Skip over navigation
Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised
Search Symbol
CPC
COOPERATIVE PATENT CLASSIFICATION
Collapse
ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS (chemical composition of the enamels C03C) [2013‑01]
Collapse
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]
Collapse
Guidance heading:
Coating with the enamels [2013‑01]
Chemical treatment of the metal surfaces prior to coating (cleaning and de-greasing of metallic objects C23G) [2013‑01]
Collapse
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]
.
with refractory materials [2013‑01]
WARNING

C23D 7/00
Treating the coatings, e.g. drying before burning [2013‑01]
Collapse
Guidance heading:
Firing the enamels [2013‑01]
Collapse
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]
Collapse
Guidance heading:
After-treatment [2013‑01]
Collapse
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]
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013