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IPC Subgroup
B27B 3/34

the stretching devices being actuated by fluid pressure

Introduced: September 1968

Last revised: January 2006

Full Title

Gang saw mills; Other sawing machines with reciprocating saw blades, specially designed for length sawing of trunks > Components > Blade attachments, e.g. saw buckles; Stretching devices > the stretching devices being actuated by fluid pressure

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
Subclass:
SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR

Top Applicants

Top 10 applicants by patent filingsfor class B27, 2013–2023, worldwide · Source: EPO PATSTAT

  1. NANJING FORESTRY UNIVERSITY 960
  2. ROBERT BOSCH DE 762
  3. HOMAG DE 384
  4. HARBIN ARTS AND CRAFTS COMPANY 350
  5. NORTHEAST FORESTRY UNIVERSITY 343
  6. SWISS KRONO TEC CH 304
  7. MAKITA CORPORATION 298
  8. DIEFFENBACHERMASCHINEN- UND ANLAGENBAU DE 296
  9. VAELINGE INNOVATION SE 287
  10. HUSQVARNA SE 282