B27K 3/30
Compounds of fluorine
B27K3/30 (Compounds of fluorine) appears on 21 US grants and 18 published applications in this corpus.
Search patents in B27K- Granted patents
- 21
- Published applications
- 18
- Assignees
- 14
- Inventors
- 43
- Latest grant
- 22 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 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 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 2 | 2 |
| 2017 | 2 | 1 |
| 2018 | 1 | 2 |
| 2019 | 0 | 3 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wood preservative and method for producing same22 Apr 2025US 12,279,615 B2Koppers Performance Chemicals Inc.
- Wood preservative and method for producing same30 Jan 2024US 11,882,833 B2Koppers Performance Chemicals Inc.
- Wood preservative and method for producing same12 Oct 2021US 11,140,901 B2Koppers Performance Chemicals Inc.
- Controlled release, wood preserving composition with low-volatile organic content for treating in-service utility poles, posts, pilings, cross-ties and other wooden structures2 Oct 2018US 10,085,453 B2Osmose Utilities Services, Inc.
- Controlled release, wood preserving composition for treating in-service utility poles, posts, pilings, cross-ties and other wooden structures7 Nov 2017US 9,808,015 B2Osmose Utilities Services, Inc.
- Wood preservative and method for producing same11 Jun 2026US 2026/0157370 A1Koppers Performance Chemicals Inc.
- Wood preservative and method for producing same28 Mar 2024US 2024/0099303 A1Koppers Performance Chemicals Inc.
- Wood preservative and method for producing same6 Jan 2022US 2022/0000115 A1Koppers Performance Chemicals Inc.
- Particulate wood preservative and method for producing same15 Aug 2019US 2019/0246641 A1Koppers Performance Chemicals Inc.
- Wood preservative and method for producing same15 Aug 2019US 2019/0246642 A1Koppers Performance Chemicals Inc.
Most cited
By later US patents
- Fluorochemical water- and oil-repellant treating compositions54US 5,370,919 AMinnesota Mining and Manufacturing Company · 1994
- Method of protecting wood with perfluoroalkane sulfonates13US 4,092,110 ABASF SE · 1978
- Improved stabilization of wood preservative solutions and preservation of wood by such solutions11US 4,847,002 ABell Canada · 1989
- In situ preservative treatment of railroad tie7US 4,738,878 AOsmose Wood Preserving, Inc. · 1988
- Method for preserving wooden cross-tie7US 5,236,711 AOsmose Wood Preserving, Inc. · 1993