B27K 3/12
Impregnating by coating the surface of the wood with an impregnating paste
B27K3/12 (Impregnating by coating the surface of the wood with an impregnating paste) appears on 26 US grants and 16 published applications in this corpus.
Search patents in B27K- Granted patents
- 26
- Published applications
- 16
- Assignees
- 20
- Inventors
- 59
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 2 | 2 |
| 2017 | 2 | 3 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 2 |
| 2021 | 2 | 1 |
| 2022 | 0 | 3 |
| 2023 | 0 | 1 |
| 2024 | 2 | 0 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Production of nanoscale emulsion18 Mar 2025US 12,251,670 B2BDC-Technology Oy
- Assembled bamboo sleeper and preparation method thereof21 Jan 2025US 12,203,224 B2Hunan Taohuajiang Bamboo Science & Technology Co., Ltd.
- One-step integrally-formed bamboo sleeper and preparation method thereof26 Nov 2024US 12,152,350 B2Hunan Taohuajiang Bamboo Science & Technology Co., Ltd.
- Liquid-state temporary reinforcing material, preparation method therefor and application thereof16 Jan 2024US 11,873,605 B2Shanghai University
- Process and apparatus for treating lignocellulosic material2 Mar 2021US 10,933,555 B2Technologies Boralife Inc.
- Restoration preservation and protection mud for wood and concrete24 Aug 2023US 2023/0265292 A1
- Aldehyde treatment of lumber31 Mar 2022US 2022/0097253 A1Finoric, LLC
- Assembled bamboo sleeper and preparation method thereof31 Mar 2022US 2022/0098799 A1Hunan Taohuajiang Bamboo Science & Technology Co., Ltd.
- One-step integrally-formed bamboo sleeper and preparation method thereof17 Mar 2022US 2022/0081848 A1Hunan Taohuajiang Bamboo Science & Technology Co., Ltd.
- Production of nanoscale emulsion15 Apr 2021US 2021/0106956 A1BDC-Technology Oy
Most cited
By later US patents
- Remedial wood preservative38US 5,342,438 A1994
- Compositions containing preservative metals and their use for the preservation of wood and like materials and as fungicides26US 4,193,993 ACuprinol Limited · 1980
- Boric acid compositions26US 4,801,404 ARutgerswerke Aktiengesellschaft · 1989
- Method for imparting flame resistance to wood surfaces23US 4,741,971 AThe Dow Chemical Company · 1988
- Production of shaped bodies of boron compounds15US 4,661,157 ALaporte Industries Limited · 1987