Treating of wood not provided for in groups B27K1/00, B27K3/00

Filing statistics

CPC B27K 5/00 belongs to the parent subclass B27K, which recorded 11,887 patent applications worldwide between 2013 and 2023. Annual filings grew from 493 in 2013 to 675 in 2023 (+37%), peaking at 1,903 applications in 2018. 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

11 direct subcodes

Child Classifications

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B27K 5/0005
B27K 5/001
B27K 5/0015
B27K 5/0025
B27K 5/003
B27K 5/007
B27K 5/0085
B27K 5/0095
B27K 5/02 Staining or dyeing wood ; Bleaching wood (bleaching wood pulp D21C9/10)
B27K 5/04 Combined bleaching or impregnating and drying of wood
B27K 5/06 Softening or hardening of wood

Top Applicants

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

ROBERT BOSCH DE 868
NANJING FORESTRY UNIVERSITY 463
HOMAG DE 437
HUSQVARNA SE 360
SWISS KRONO TEC CH 350
MAKITA CORPORATION JP 319
DIEFFENBACHERMASCHINEN- UND ANLAGENBAU DE 312
VAELINGE INNOVATION SE 306
ANDREAS STIHL & COMPANY DE 275
FESTOOL DE 260