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DIFF Main Group
B31C 1/00

Making tubes or pipes by feeding at right angles to the winding mandrel centre line

Introduced: September 1968

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

Child Classifications

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  • B31C 1/02 Machines therefor having additional mandrels IPC+CPC Available in IPC and CPC
  • B31C 1/04 and forming a tube end into a container bottom IPC+CPC Available in IPC and CPC
  • B31C 1/06 and inserting into a tube end a bottom to form a container IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B31,2013–2023, worldwide · Source: EPO PATSTAT

  1. GPI (GRAPHIC PACKAGING INTERNATIONAL) US 356
  2. KIMBERLY-CLARK CORPORATION US 296
  3. RANPAK CORPORATION US 257
  4. P&G (PROCTER & GAMBLE COMPANY) US 228
  5. BOBST MEX CH 218
  6. JIANGSU NANJIANG MACHINERY COMPANY 214
  7. SINOTECHO (WUHAN) INTELLIGENT TECHNOLOGY COMPANY 209
  8. DONGGUAN HONGMING MACHINERY COMPANY 195
  9. BHS CORRUGATED MASCHINEN- UND ANLAGENBAU DE 192
  10. TETRA LAVAL HOLDINGS & FINANCE CH 183

Top Applicants (CPC)

Class B31,2013–2023, worldwide · Source: EPO PATSTAT

  1. GPI (GRAPHIC PACKAGING INTERNATIONAL) US 496
  2. P&G (PROCTER & GAMBLE COMPANY) US 403
  3. KIMBERLY-CLARK CORPORATION US 332
  4. RANPAK CORPORATION US 279
  5. PULPAC SE 256
  6. BOBST MEX CH 251
  7. TETRA LAVAL HOLDINGS & FINANCE CH 246
  8. PREGIS INNOVATIVE PACKAGING US 210
  9. WESTROCK SHARED SERVICES US 204
  10. BHS CORRUGATED MASCHINEN- UND ANLAGENBAU DE 198