B27K 5/0075
Vacuum
Official title: {Vacuum}
B27K5/0075 (Vacuum) appears on 20 US grants and 19 published applications in this corpus.
Search patents in B27K- Granted patents
- 20
- Published applications
- 19
- Assignees
- 21
- Inventors
- 48
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 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 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 3 |
| 2018 | 1 | 2 |
| 2019 | 4 | 2 |
| 2020 | 2 | 1 |
| 2021 | 1 | 3 |
| 2022 | 1 | 1 |
| 2023 | 1 | 2 |
| 2024 | 2 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Combined process of hydrolysis and esterification of wood14 Apr 2026US 12,600,056 B2
- Protective hemp oil for wood treatment method9 Apr 2024US 11,951,650 B2Smart Green Utility Pole, LLC.
- Methods for enhancing the preservation of cellulosic materials and cellulosic materials prepared thereby5 Mar 2024US 11,919,191 B2American Chemet Corporation
- Method for manufacturing transparent heat-insulation building material based on waste wood26 Dec 2023US 11,850,768 B2Zhejiang Pengyuan New Material Technology Group Co., Ltd.
- Methods for enhancing the preservation of cellulosic materials and cellulosic materials prepared thereby27 Sep 2022US 11,453,142 B2American Chemet Corporation
- Combined process of hydrolysis and esterification of wood25 Jul 2024US 2024/0246256 A1
- Protective hemp oil for wood treatment method18 Jul 2024US 2024/0239003 A1Smart Green Utility Pole, LLC.
- Protective hemp oil for wood treatment method9 Feb 2023US 2023/0044862 A1Smart Green Utility Pole, LLC.
- Methods for enhancing the preservation of cellulosic materials and cellulosic materials prepared thereby2 Feb 2023US 2023/0034800 A1American Chemet Corporation
- Method for manufacturing transparent heat-insulation building material based on waste wood17 Mar 2022US 2022/0080616 A1Zhejiang Pengyuan New Material Technology Group Co., Ltd.
Most cited
By later US patents
- Treatment of wood28US 4,062,991 AFosroc A.G. · 1977
- Wood preservation process19US 4,325,993 A1982
- Process of treating wood with preservative16US 6,235,403 B1Chemica Limited · 2001
- Process for post-treatment of preservative-treated wood14US 5,080,935 AMooney Chemicals, Inc. · 1992
- Wood treating process8US 3,959,529 AThe Dow Chemical Company · 1976