ClassID:

47049

B27K3/20 - CPC Classification

Classification description:

Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process; Inorganic impregnating agents Compounds of alkali metals or ammonium

Recent Application in this class:
#1
20250187226
2025-06-12

WOOD COMPOSITES AND PROCESSES TO MODIFY SAME USING STABLE, LOW PH AQUEOUS SILICATE SUSPENSIONS

#2
20250162189
2025-05-22

STRONG AND TOUGH STRUCTURAL WOOD MATERIALS, AND METHODS FOR FABRICATING AND USE THEREOF

#3
20240269882
2024-08-15

DELIGNIFIED WOOD MATERIALS, AND METHODS FOR FABRICATING AND USE THEREOF

#4
20240124718
2024-04-18

Board material processing composition, board material laminate, and method for manufacturing board material laminate

#5
20240099303
2024-03-28

Wood preservative and method for producing same

#6
20240093041
2024-03-21

BOARD MATERIAL PROCESSING COMPOSITION, BOARD MATERIAL LAMINATE, AND METHOD FOR MANUFACTURING BOARD MATERIAL LAMINATE

#7
20240091980
2024-03-21

FLAME RETARDANT WOOD, PREPARATION METHOD THEREOF AND USE OF METAL HALIDE

#8
20240083067
2024-03-14

WASTE-FREE PROCESSING FOR LIGNIN MODIFICATION OF FIBROUS PLANT MATERIALS, AND LIGNIN-MODIFIED FIBROUS PLANT MATERIALS

#9
20230405866
2023-12-21

Process and Design Modifications to Retrofit a Conventional Wood Plant

#10
20230264382
2023-08-24

METHOD FOR PRODUCING MODIFIED WOOD-BASED MATERIAL, FURAN DERIVATIVE RESINIFICATION SOLUTION, AND MODIFIED WOOD-BASED MATERIAL

#11
20230166427
2023-06-01

Strong and tough structural wood materials, and methods for fabricating and use thereof

#12
20230034800
2023-02-02

Methods for enhancing the preservation of cellulosic materials and cellulosic materials prepared thereby

#13
20220314486
2022-10-06

Fireproof water-resistant wood chip material and method of its production

#14
20220288808
2022-09-15

Enhanced performance of wood and engineered wood products using combined durability and flame retardancy

#15
20220267613
2022-08-25

Compound for surface protection

#16
20220040881
2022-02-10

Strong and tough structural wood materials, and methods for fabricating and use thereof

#17
20220000115
2022-01-06

Wood preservative and method for producing same

#18
20210260790
2021-08-26

MODIFIED WOODEN SHEET, METHOD FOR PRODUCING SAME, AND MODIFYING AGENT

#19
20210251222
2021-08-19

Preservative composition for wood based on modified lignin

#20
20210187782
2021-06-24

IMPROVED FLAME RETARDANCY OF WOOD AND OTHER CELLULOSE-BASED MATERIALS BY IN-SITU MINERALIZATION

#21
20210170623
2021-06-10

GREEN PROCESS FOR MODIFYING WOOD

#22
20210008755
2021-01-14

Methods for enhancing the preservation of cellulosic materials and cellulosic materials prepared thereby

#23
20200238565
2020-07-30

Delignified wood materials, and methods for fabricating and use thereof

#24
20200223091
2020-07-16

Strong and tough structural wood materials, and methods for fabricating and use thereof

#25
20200151832
2020-05-14

FACTORY METHODS, SYSTEM AND NETWORK FOR PREFABRICATING CLASS-A FIRE-PROTECTED WOOD-FRAMED BUILDINGS AND COMPONENTS USED TO CONSTRUCT THE SAME

#26
20200139574
2020-05-07

Enhanced performance of wood and engineered wood products using combined durability and flame retardancy

#27
20200047370
2020-02-13

Methods for enhancing the preservation of cellulosic materials and cellulosic materials prepared thereby

#28
20190246641
2019-08-15

Wood preservative and method for producing same

#29
20190002731
2019-01-03

Coating compositions and treating method

#30
20180327670
2018-11-15

Flame or fire retarding agents and their manufacture and use

#31
20180304493
2018-10-25

Mixtures of ammonium polyphosphate and at least one soluble ionic compound containing sulfate and/or is capable of releasing sulfate ions

#32
20180257256
2018-09-13

UV-STABLE AND SUPERHYDROPHOBIC WOOD SURFACE

#33
20180021975
2018-01-25

FIRE RESISTANT WOODEN BODY AND METHOD FOR PRODUCING THEREOF

#34
20170320230
2017-11-09

Wood preservative formulation

#35
20170267873
2017-09-21

Flame retardant composition for wood, flame retardant wood, and method for manufacturing the same

#36
20170129131
2017-05-11

Treated wood material

#37
20170120472
2017-05-04

Process and apparatus for treating lignocellulosic material

#38
20170087739
2017-03-30

TREATMENT OF HARDWOOD ARTICLES WITH COPPER AND/OR ZINC WOOD PRESERVATIVES

#39
20140093742
2014-04-03

Fire retardant composition and method for treating wood

#40
20130209823
2013-08-15

Wood preservative compositions useful for treating copper-tolerant fungi

#41
20130017404
2013-01-17

TREATMENT OF HARDWOOD ARTICLES WITH COPPER AND/OR ZINC WOOD PRESERVATIVES

#42
20130012089
2013-01-10

Process of using sodium silicate to create fire retardant products

#43
20120148857
2012-06-14

Treated wood and methods of treatment

#44
20120128791
2012-05-24

Ammoniacal copper zinc arsenate concentrates and methods of preparation

#45
20110151129
2011-06-23

WOOD TREATMENT SOLUTION AND PROCESS

#46
20100062153
2010-03-11

Aqueous and dry duel-action flame and smoke retardant and microbe inhibiting compositions, and related methods

#47
20090133847
2009-05-28

Process of using sodium silicate to create fire retardant products

#48
20090130475
2009-05-21

Wood treatment solution and process

#49
20080166481
2008-07-10

Ammoniacal borate and zinc compositions, and methods for treating wood products

#50
20080099736
2008-05-01

Fire retardant compositions and methods of use

#51
20080069978
2008-03-20

Amino acid-solubilized borate, silicate and zinc compositions and methods for treating wood products

#52
20070163466
2007-07-19

Tungstate and molybate wood preservatives

#53
20070033826
2007-02-15

Liquor that avoids the apparition of stains produced by fungi in lignocellulosic materials such as wood

#54
20060216425
2006-09-28

Process for chemically aging certain wood species

#55
20060078686
2006-04-13

Penetration of copper-ethanolamine complex in wood

#56
20060075923
2006-04-13

Method of manufacture and treatment of wood with injectable particulate iron oxide

#57
20050152994
2005-07-14

Composition and process for coloring and preserving wood

#58
20050070438
2005-03-31

Impregnating agent

#59
20050042377
2005-02-24

Process of using sodium silicate to create fire retardant products

#60
19176190
2025-11-18

Method for the modification of wood materials to improve mechanical properties, water resistance and flame retardancy by utilizing a combination of mineralization with infusion and polymerization of biopolymers

#61
15690280
2018-05-15

Fire retardant composition