Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subclass
B27F

DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES

Introduced: September 1968

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
Subclass:
DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES

Description

B27F covers specialized woodworking machinery and techniques for creating and assembling wooden joints, particularly dovetailed joints and mortise-and-tenon connections used in furniture and construction. It includes slotting machines designed to cut grooves, slots, and mortises in wood or similar materials, as well as the general category of nailing and stapling machines for fastening wood components. This classification encompasses both the mechanical equipment used to produce these joints and the processes involved in their manufacture, distinct from more basic wood machining operations covered elsewhere in B27.

Filing statistics

IPC subclass B27F recorded 6,332 patent applications worldwide between 2013 and 2023. Annual filings grew from 207 in 2013 to 703 in 2023 (+240%), peaking at 970 applications in 2020. The most active applicants in class B27 are NANJING FORESTRY UNIVERSITY (960 applications), ROBERT BOSCH (762 applications) and HOMAG (384 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

jointing WOOD

4 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • B27F 4/00 Machines for inserting dowels, with or without drilling equipment

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