Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
B41L 23/02

by damping, e.g. by moistening copy sheets in connection with hectographic printing

Introduced: September 1968

Title

Titles differ between systems:

IPC: by damping, e.g. by moistening copy-sheets in connection with hectographic printing

CPC: by damping, e.g. by moistening copy sheets in connection with hectographic printing

Full Title

Full titles differ between systems:

IPC:

Devices for treating the surface of sheets, webs, or other articles in connection with printing > by damping, e.g. by moistening copy-sheets in connection with hectographic printing

CPC:

Devices for treating the surfaces of sheets, webs, or other articles in connection with printing (as a final step in the manufacture of such articles, see the relevant places, e.g. B29C71/00, D21H23/00 or D21H25/00; after-treatment of prints B41M7/00) > by damping, e.g. by moistening copy sheets in connection with hectographic printing

IPC and CPC are identically structured here. All 8 subcodes exist in both systems.

Child Classifications

Navigate with arrow keys, Enter to open

  • B41L 23/04 using friction rollers IPC+CPC Available in IPC and CPC
  • B41L 23/06 using brushes IPC+CPC Available in IPC and CPC
  • B41L 23/08 using spray elements IPC+CPC Available in IPC and CPC
  • B41L 23/10 using endless bands IPC+CPC Available in IPC and CPC
  • B41L 23/12 using absorbent pads IPC+CPC Available in IPC and CPC
  • B41L 23/14 Ducts, containers, or like supply devices for liquids IPC+CPC Available in IPC and CPC
  • B41L 23/16 Devices for tripping or lifting damping rollers; Supporting, adjusting, or removing arrangements therefor IPC+CPC Available in IPC and CPC
  • B41L 23/18 Construction of damping rollers IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class B41,2013–2023, worldwide · Source: EPO PATSTAT

  1. SEIKO EPSON CORPORATION 14,672
  2. CANON 14,153
  3. RICOH COMPANY 8,049
  4. SEIKO EPSON CORPORATION JP 8,044
  5. HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,312
  6. BROTHER INDUSTRIES 6,887
  7. KYOCERA DOCUMENT SOLUTIONS 5,463
  8. CANON JP 5,001
  9. KONICA MINOLTA CORPORATION 4,512
  10. BROTHER INDUSTRIES JP 3,681

Top Applicants (CPC)

Class B41,2013–2023, worldwide · Source: EPO PATSTAT

  1. SEIKO EPSON CORPORATION 8,446
  2. SEIKO EPSON CORPORATION JP 8,438
  3. HEWLETT-PACKARD DEVELOPMENT COMPANY US 7,828
  4. CANON JP 5,419
  5. CANON 4,156
  6. BROTHER INDUSTRIES JP 3,763
  7. BROTHER INDUSTRIES 2,779
  8. RICOH COMPANY JP 2,717
  9. FUJIFILM JP 2,423
  10. RICOH COMPANY 1,739