B27K 3/02
Processes
Official title: Processes; Apparatus
B27K3/02 (Processes) appears on 805 US grants and 753 published applications in this corpus.
Search patents in B27K- Granted patents
- 805
- Published applications
- 753
- Assignees
- 540
- Inventors
- 1,673
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 23 | 0 |
| 1978 | 9 | 0 |
| 1979 | 12 | 0 |
| 1980 | 11 | 0 |
| 1981 | 22 | 0 |
| 1982 | 7 | 0 |
| 1983 | 14 | 0 |
| 1984 | 4 | 0 |
| 1985 | 9 | 0 |
| 1986 | 16 | 0 |
| 1987 | 13 | 0 |
| 1988 | 19 | 0 |
| 1989 | 21 | 0 |
| 1990 | 12 | 0 |
| 1991 | 16 | 0 |
| 1992 | 13 | 0 |
| 1993 | 7 | 0 |
| 1994 | 11 | 0 |
| 1995 | 10 | 0 |
| 1996 | 13 | 0 |
| 1997 | 18 | 0 |
| 1998 | 10 | 0 |
| 1999 | 13 | 0 |
| 2000 | 16 | 0 |
| 2001 | 24 | 9 |
| 2002 | 14 | 16 |
| 2003 | 25 | 19 |
| 2004 | 12 | 25 |
| 2005 | 10 | 27 |
| 2006 | 9 | 37 |
| 2007 | 8 | 26 |
| 2008 | 3 | 26 |
| 2009 | 11 | 30 |
| 2010 | 17 | 23 |
| 2011 | 6 | 22 |
| 2012 | 13 | 19 |
| 2013 | 20 | 36 |
| 2014 | 15 | 37 |
| 2015 | 21 | 33 |
| 2016 | 27 | 32 |
| 2017 | 15 | 47 |
| 2018 | 22 | 26 |
| 2019 | 36 | 43 |
| 2020 | 21 | 38 |
| 2021 | 27 | 40 |
| 2022 | 26 | 36 |
| 2023 | 17 | 31 |
| 2024 | 25 | 35 |
| 2025 | 24 | 21 |
| 2026 | 12 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B27K 3/15Impregnating involving polymerisation including use of polymer-containing impregnating agents402
- B27K 3/08Impregnating by pressure279
- B27K 3/0278Involving an additional treatment during or after impregnation208
- B27K 3/0207Pretreatment of wood before impregnation123
- B27K 3/0271Vapour phase impregnation34
- B27K 3/12Impregnating by coating the surface of the wood with an impregnating paste26
- B27K 3/14Bandage methods21
- B27K 3/0235Stationary devices on or in legs or poles20
Recent patents
- Method for producing a wooden composite board, and device for producing a wooden composite board15 Sep 2026US 12,734,723 B2SWISS KRONO Tec AG
- Densified hygroscopic materials and products made thereof8 Sep 2026US 12,728,560 B2Swiss Wood Solutions AG
- Wood treatment compositions having antimicrobial properties4 Aug 2026US 12,697,748 B2Société en Commandite Prolam
- Treating cellulosic materials and methods of making treated cellulosic materials7 Jul 2026US 12,673,443 B2Georgia Tech Research Corporation
- Transparent wood surface imprinting optical device and application thereof30 Jun 2026US 12,667,994 B2Nanjing Forestry University
- Process for the acetylation of wood and acetylated wood17 Sep 2026US 2026/0273793 A1Titan Wood Limited
- Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process27 Aug 2026US 2026/0249512 A1SAS Woodoo
- Impregnated wood part, process for impregnating wood parts, and use of same20 Aug 2026US 2026/0242704 A1
- Acetylated wood30 Jul 2026US 2026/0216912 A1YKK AP Inc.
- Antimicrobial materials, and systems and methods for fabrication and use thereof16 Jul 2026US 2026/0198500 A1University of Maryland, College Park
Most cited
By later US patents
- Fire retardant compositions and methods for preserving wood products255US 6,620,349 B12003
- Water repellent composition148US 5,695,551 ADow Corning Corporation · 1997
- Plug for sealing preservative in wood142US 5,114,032 A1992
- Golf club head97US 4,568,088 ASumitomo Rubber Industries, Ltd. · 1986
- Aqueous biocidal cationic dispersions of polymers and their use as fungicidal, bactericidal and algicidal treatment agents64US 5,049,383 AHoechst Aktiengesellschaft · 1991