ClassID:

47022

B27K3/0221 - CPC Classification

Classification description:

Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process; Processes; Apparatus; Pretreatment of wood before impregnation Pore opening

Recent Application in this class:
#1
20260070255
2026-03-12

SELF-FLOWING TREATMENT OF WOOD, BAMBOO, AND OTHER POROUS MATERIALS

#2
20240239004
2024-07-18

WOOD MATERIALS HAVING ANISOTROPIC ELASTICITY, AND METHODS FOR FABRICATION AND USE THEREOF

#3
20230332352
2023-10-19

SELECTIVELY DEPOLYMERIZING CELLULOSIC MATERIALS FOR USE AS THERMAL AND ACOUSTIC INSULATORS

#4
20220134596
2022-05-05

PROCESS FOR PARTIAL DELIGNIFICATION AND FILLING OF A LIGNOCELLULOSIC MATERIAL, AND COMPOSITE MATERIAL STRUCTURE ABLE TO BE OBTAINED BY THIS PROCESS

#5
20200263356
2020-08-20

Selectively depolymerizing cellulosic materials for use as thermal and acoustic insulators

#6
20190168411
2019-06-06

Method for liquid treatment of a wood species

#7
20190077040
2019-03-14

Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process

#8
20180370071
2018-12-27

Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process

#9
20180126585
2018-05-10

Method and device for specifically influencing the technological properties of individual regions of a sheet-like material, a pre-compacted material nonwoven or a material fibre cake

#10
20180122343
2018-05-03

Tone bar woody material, tone bar percussion instrument, and production method of tone bar woody material

#11
20170173819
2017-06-22

Method for the modification of wood

#12
20150352744
2015-12-10

Methods of conferring fire retardancy to wood and fire-retardant wood products

#13
20130328238
2013-12-12

Method and device for specifically influencing the technological properties of individual regions of a sheet-like material, a pre-compacted material nonwoven or a material fibre cake

#14
20130199276
2013-08-08

Incorporation of metal nanoparticles into wood substrate and methods

#15
20120328895
2012-12-27

PRE-TREATMENT FOR PRESERVATION OF WOOD