D04H 1/645
Impregnation followed by a solidification process
D04H1/645 (Impregnation followed by a solidification process) appears on 146 US grants and 152 published applications in this corpus.
Search patents in D04H- Granted patents
- 146
- Published applications
- 152
- Assignees
- 113
- Inventors
- 458
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 4 |
| 2002 | 4 | 3 |
| 2003 | 3 | 5 |
| 2004 | 3 | 1 |
| 2005 | 1 | 6 |
| 2006 | 1 | 2 |
| 2007 | 2 | 4 |
| 2008 | 1 | 4 |
| 2009 | 0 | 3 |
| 2010 | 2 | 11 |
| 2011 | 1 | 4 |
| 2012 | 2 | 5 |
| 2013 | 3 | 4 |
| 2014 | 2 | 5 |
| 2015 | 4 | 1 |
| 2016 | 4 | 7 |
| 2017 | 4 | 4 |
| 2018 | 3 | 5 |
| 2019 | 2 | 7 |
| 2020 | 2 | 9 |
| 2021 | 4 | 5 |
| 2022 | 0 | 7 |
| 2023 | 7 | 15 |
| 2024 | 6 | 12 |
| 2025 | 8 | 8 |
| 2026 | 10 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High efficiency synthetic filter media1 Sep 2026US 12,722,107 B2Knowlton Technologies, LLC
- Filter material for air filter and method for producing filter material14 Jul 2026US 12,678,724 B2Hokuetsu Corporation
- Aqueous binder compositions for mineral wool products12 May 2026US 12,624,194 B2Owens Corning Intellectual Capital, LLC
- Fluoropolymer fiber-bonding agent and articles produced therewith14 Apr 2026US 12,601,092 B2Arkema Inc.
- Nonwoven fabric; pouched product and related methods14 Apr 2026US 12,601,093 B2Nonwovenn Ltd
- Aqueous binder compositions for mineral wool products13 Aug 2026US 2026/0234372 A1Owens Corning Intellectual Capital, LLC
- Biodegradable nonwoven sheets, a method of manufacturing the same and uses thereof6 Aug 2026US 2026/0223788 A1
- Nonwoven fabric for oral pouched product, and methods of manufacturing a nonwoven fabric30 Jul 2026US 2026/0218428 A1
- Method for preparing a thermosetting binder composition based on water-soluble or water-dispersible lignin ester, for binding fibres23 Jul 2026US 2026/0209447 A1Saint-Gobain Isover
- Textile bonded by a binder based on polyelectrolytes having opposite charge polarities23 Jul 2026US 2026/0210011 A1Saint-Gobain Adfors
Most cited
By later US patents
- Aqueous compositions145US 6,299,936 B1BASF SE · 2001
- Thermosetting aqueous compostions101US 6,114,464 ABASF SE · 2000
- Thermosetting aqueous compositions101US 6,348,530 B1BASF SE · 2002
- Nonwoven sheets, adhesive articles, and methods for making the same94US 6,383,958 B12002
- Formaldehyde-free binding, impregnating or coating compositions for fibrous sheet materials81US 5,536,766 ABASF SE · 1996