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DIFF Subgroup
B31B 70/26

Folding sheets, blanks or webs

Introduced: January 2017

Full Title

Making flexible containers, e.g. envelopes or bags > Folding sheets, blanks or webs

CPC subdivides this area 4x more granularly than IPC with 6 additional codes.

6 codes are CPC-only extensions.

IPC defines codes here since 2017.

Child Classifications

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  • B31B 70/261 CPC only CPC only
  • B31B 70/36 by continuously feeding them to stationary members, e.g. plates, ploughs or cores since 2017 IPC+CPC Available in IPC and CPC
  • B31B 70/44 CPC only CPC only
  • B31B 70/52 by reciprocating or oscillating members other than plungers and dies, e.g. by fingers since 2017 IPC+CPC Available in IPC and CPC
  • B31B 70/56 CPC only CPC only
  • B31B 70/58 CPC only CPC only

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