Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
B21J 7/10

with both drive and hammer connected to a fulcrumed lever, e.g. tail hammers

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Hammers; Forging machines with hammers or die jaws acting by impact > Special design or construction > with both drive and hammer connected to a fulcrumed lever, e.g. tail hammers

CPC:

Hammers; Forging machines with hammers or die jaws acting by impact (hand hammers B25D; electrical features in section H) > Special design or construction > with both drive and hammer connected to a fulcrumed lever, e.g. tail hammers

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

Child Classifications

Navigate with arrow keys, Enter to open

  • B21J 7/12 the lever being a spring, i.e. spring hammers IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B21,2013–2023, worldwide · Source: EPO PATSTAT

  1. JFE STEEL 2,318
  2. JFE STEEL JP 2,294
  3. POSCO (POHANG IRON AND STEEL COMPANY) KR 2,083
  4. NIPPON STEEL CORPORATION JP 1,650
  5. NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 1,631
  6. SMS GROUP DE 1,472
  7. BAOSHAN IRON & STEEL COMPANY 1,181
  8. SGCC(STATE GRID CORPORATION OF CHINA) 1,079
  9. ANHUI JIANGHUAI AUTOMOBILE 984
  10. HYUNDAI STEEL COMPANY KR 980

Top Applicants (CPC)

Class B21,2013–2023, worldwide · Source: EPO PATSTAT

  1. JFE STEEL JP 2,667
  2. NIPPON STEEL CORPORATION JP 2,049
  3. POSCO (POHANG IRON AND STEEL COMPANY) KR 1,967
  4. NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 1,800
  5. SMS GROUP DE 1,538
  6. JFE STEEL 1,150
  7. ARCELORMITTAL LU 1,142
  8. BAOSHAN IRON & STEEL COMPANY 821
  9. HYUNDAI STEEL COMPANY KR 808
  10. THYSSENKRUPP STEEL EUROPE DE 660