F26B 21/331
By using sorbent or hygroscopic materials
Official title: {by using sorbent or hygroscopic materials, e.g. chemical substances or molecular sieves}
F26B21/331 (By using sorbent or hygroscopic materials) appears on 185 US grants and 170 published applications in this corpus.
Search patents in F26B- Granted patents
- 185
- Published applications
- 170
- Assignees
- 105
- Inventors
- 348
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 12 | 2 |
| 2002 | 9 | 5 |
| 2003 | 4 | 8 |
| 2004 | 5 | 8 |
| 2005 | 1 | 4 |
| 2006 | 4 | 3 |
| 2007 | 3 | 4 |
| 2008 | 0 | 3 |
| 2009 | 2 | 3 |
| 2010 | 2 | 6 |
| 2011 | 1 | 4 |
| 2012 | 2 | 4 |
| 2013 | 3 | 6 |
| 2014 | 5 | 8 |
| 2015 | 5 | 5 |
| 2016 | 3 | 1 |
| 2017 | 4 | 4 |
| 2018 | 2 | 2 |
| 2019 | 2 | 6 |
| 2020 | 7 | 9 |
| 2021 | 6 | 5 |
| 2022 | 4 | 1 |
| 2023 | 4 | 9 |
| 2024 | 4 | 19 |
| 2025 | 13 | 23 |
| 2026 | 11 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Plastic dehumidification and drying device15 Sep 2026US 12,736,284 B2
- Filament drying system12 May 2026US 12,624,892 B2Thought3D Limited
- Methods and apparatuses for drying electronic devices24 Mar 2026US 12,584,689 B2Revive Electronics, LLC
- Finishing apparatus for a spray drying system10 Mar 2026US 12,571,587 B2Velico Medical, Inc.
- Drying storage10 Mar 2026US 12,571,589 B2HU-master Inc.
- Dehumidification drying system for synthetic resin molding material17 Sep 2026US 2026/0276303 A1Osaka Reiken Co., Ltd.
- Finishing Apparatus For A Spray Drying System27 Aug 2026US 2026/0251391 A1Velico Medical, Inc.
- Dehydration device and assembly, and method for obtaining such an assembly27 Aug 2026US 2026/0251392 A1Lgd
- Method for managing a dehydration system and corresponding dehydration system20 Aug 2026US 2026/0243511 A1Lgd
- Cellulose ester particulates having reduced moisture content for foam sheet production processes6 Aug 2026US 2026/0226197 A1Eastman Chemical Company
Most cited
By later US patents
- Moisture sensitive item drying appliance589US 5,852,879 A1998
- Desiccant entrained polymer176US 7,005,459 B2CSP Technologies, Inc. · 2006
- Desiccation of moisture-sensitive electronic devices157US 6,226,890 B1Eastman Kodak Company · 2001
- Monolithic polymer composition having an absorbing material94US 6,194,079 B1Capitol Specialty Plastics, Inc. · 2001
- Dessicant entrained polymer93US 6,080,350 ACapitol Specialty Plastics, Inc. · 2000