Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
B21G 3/24

by simultaneously forming the head of one nail and the adjacent point of another

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Making pins, nails, or the like > by operations not restricted to one of the groups > from wire of indefinite length > by simultaneously forming the head of one nail and the adjacent point of another

CPC:

Making pins, nails, or the like (of pins with individual caps B21G5/00; of U-like shape B21G7/00; of split-pins B21G7/08) > by operations not restricted to one of the groups B21G3/12 - B21G3/16 (B21G3/06 - B21G3/10 take precedence) > from wire of indefinite length (by rolling B21G3/30) > by simultaneously forming the head of one nail and the adjacent point of another

No child classifications to compare. This is a leaf node in both 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