A24B 3/185
By impregnating with a liquid and subsequently freezing and evaporating this liquid
Official title: {by impregnating with a liquid and subsequently freezing and evaporating this liquid}
A24B3/185 (By impregnating with a liquid and subsequently freezing and evaporating this liquid) appears on 17 US grants and 12 published applications in this corpus.
Search patents in A24B- Granted patents
- 17
- Published applications
- 12
- Assignees
- 11
- Inventors
- 45
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vessel screen retaining system and method6 May 2025US 12,290,094 B2Philip Morris USA Inc.
- Vessel screen retaining system and method5 Mar 2024US 11,918,030 B2Philip Morris USA Inc.
- Vessel screen retaining system and method29 Mar 2022US 11,284,642 B2Philip Morris USA Inc.
- Swollen tobacco material manufacturing method12 Dec 2000US 6,158,440 AJapan Tobacco Inc.
- Process and apparatus for expanding tobacco cut filler9 Nov 1993US 5,259,403 AR. J. Reynolds Tobacco Company
- Tobacco treatment1 Oct 2026US 2026/0293960 A1British American Tobacco Exports Limited
- Tobacco treatment30 Jul 2026US 2026/0215475 A1Nicoventures Trading Limited
- Method for producing a plant-based sheet26 Feb 2026US 2026/0053179 A1Philip Morris Products S. A.
- Smoking material including expanded tobacco leaves, method of preparing the same, and smoking article including the same9 Oct 2025US 2025/0311763 A1Kt&G Corporation
- Vessel screen retaining system and method7 Aug 2025US 2025/0248438 A1Philip Morris USA Inc.
Most cited
By later US patents
- Expanding tobacco38US 4,340,073 APhilip Morris Incorporated · 1982
- Process for expanding tobacco34US 4,336,814 APhilip Morris Incorporated · 1982
- Carbon dioxide impregnation of tobacco by super cooling18US 4,250,898 APhilip Morris Incorporated · 1981
- Process and apparatus for expanding tobacco cut filler11US 5,259,403 AR. J. Reynolds Tobacco Company · 1993
- Tobacco expansion process9US 4,760,854 ABrown & Williamson Tobacco Corporation · 1988