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CPC Subgroup
B27B 3/02

with vertically-reciprocating saw frame

Full Title

Gang saw mills; Other sawing machines with reciprocating saw blades, specially designed for length sawing of trunks > with vertically-reciprocating saw frame

Filing statistics

CPC B27B 3/02 belongs to the parent subclass B27B, which recorded 11,434 patent applications worldwide between 2013 and 2023. Annual filings declined from 826 in 2013 to 729 in 2023 (-12%), peaking at 1,371 applications in 2020. The most active applicants in class B27 are ROBERT BOSCH (868 applications), NANJING FORESTRY UNIVERSITY (463 applications) and HOMAG (437 applications).

Source: EPO PATSTAT, worldwide filings

8 direct subcodes

Child Classifications

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  • B27B 3/04 with multiple- blade saw frame
  • B27B 3/10 Saw frames or guides therefor
  • B27B 3/12 Mechanisms for producing the reciprocating movement of the saw frame; Arrangements for damping vibration; Arrangements for counter-balancing (B27B3/26 takes precedence)
  • B27B 3/14 Arrangements for raising or lowering the feed rollers
  • B27B 3/16 Driving mechanisms for the feed rollers
  • B27B 3/18 Controlling equipment, e.g. for controlling the drive
  • B27B 3/20 Equipment for guiding the sawn part of timber during machining, e.g. preventing faults due to torsional stress

Top Applicants

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

  1. ROBERT BOSCH DE 868
  2. NANJING FORESTRY UNIVERSITY 463
  3. HOMAG DE 437
  4. HUSQVARNA SE 360
  5. SWISS KRONO TEC CH 350
  6. MAKITA CORPORATION JP 319
  7. DIEFFENBACHERMASCHINEN- UND ANLAGENBAU DE 312
  8. VAELINGE INNOVATION SE 306
  9. ANDREAS STIHL & COMPANY DE 275
  10. FESTOOL DE 260