IPC Subgroup
B22D 19/08 for building up linings or coverings, e.g. of anti-frictional metal
Introduced: September 1968
Last revised: January 2006
Full Title
Casting in, on, or around, objects which form part of the product > for building up linings or coverings, e.g. of anti-frictional metal
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- CASTING; POWDER METALLURGY
- Subclass:
- CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
Related Keywords
COATING metal parts by plating with sheet metalCOATING metal parts by welding, soldering or brazing
Top Applicants
Top 10 applicants by patent filingsfor class B22, 2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 1,719
- CHINESE ACADEMY OF SCIENCES 1,489
- POSCO (POHANG IRON AND STEEL COMPANY) KR 1,248
- TOYOTA MOTOR CORPORATION 1,043
- SIEMENS DE 1,028
- CENTRAL SOUTH UNIVERSITY 959
- HEWLETT-PACKARD DEVELOPMENT COMPANY US 891
- UNITED TECHNOLOGIES CORPORATION (UTC) US 786
- UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING 769
- JFE STEEL JP 761