F26B 3/02
Drying solid materials or objects by processes involving the application of heat
Official title: by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air {(F26B3/283 and F26B3/343 take precedence)}
F26B3/02 (Drying solid materials or objects by processes involving the application of heat) appears on 1,387 US grants and 1,511 published applications in this corpus.
Search patents in F26B- Granted patents
- 1,387
- Published applications
- 1,511
- Assignees
- 987
- Inventors
- 3,602
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 23 | 0 |
| 1978 | 19 | 0 |
| 1979 | 11 | 0 |
| 1980 | 28 | 0 |
| 1981 | 32 | 0 |
| 1982 | 21 | 0 |
| 1983 | 12 | 0 |
| 1984 | 13 | 0 |
| 1985 | 17 | 0 |
| 1986 | 27 | 0 |
| 1987 | 23 | 0 |
| 1988 | 15 | 0 |
| 1989 | 16 | 0 |
| 1990 | 16 | 0 |
| 1991 | 8 | 0 |
| 1992 | 17 | 0 |
| 1993 | 13 | 0 |
| 1994 | 18 | 0 |
| 1995 | 10 | 0 |
| 1996 | 14 | 0 |
| 1997 | 16 | 0 |
| 1998 | 16 | 0 |
| 1999 | 15 | 0 |
| 2000 | 14 | 0 |
| 2001 | 11 | 1 |
| 2002 | 8 | 6 |
| 2003 | 9 | 16 |
| 2004 | 13 | 16 |
| 2005 | 11 | 13 |
| 2006 | 4 | 16 |
| 2007 | 6 | 16 |
| 2008 | 6 | 27 |
| 2009 | 7 | 19 |
| 2010 | 9 | 25 |
| 2011 | 13 | 25 |
| 2012 | 10 | 28 |
| 2013 | 20 | 37 |
| 2014 | 25 | 41 |
| 2015 | 32 | 52 |
| 2016 | 37 | 73 |
| 2017 | 41 | 87 |
| 2018 | 69 | 107 |
| 2019 | 77 | 87 |
| 2020 | 87 | 121 |
| 2021 | 95 | 112 |
| 2022 | 68 | 106 |
| 2023 | 68 | 108 |
| 2024 | 83 | 148 |
| 2025 | 92 | 125 |
| 2026 | 55 | 99 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F26B 3/06The gas or vapour flowing through the materials or objects to be610
- F26B 3/04The gas or vapour circulating over or surrounding the materials or objects443
- F26B 3/10The gas or vapour carrying the materials or objects to be dried282
- F26B 3/14The materials or objects to be dried being moved by gravity55
Recent patents
- Method to retrofit can oven or dryer29 Sep 2026US 12,747,913 B2Stolle Machinery Company, LLC
- Portable dryer device and fan unit15 Sep 2026US 12,736,283 B2Powdry Development, LLC
- Plastic dehumidification and drying device15 Sep 2026US 12,736,284 B2
- Electrode sheet oven drying apparatus, battery production device, and electrode sheet oven drying method8 Sep 2026US 12,729,909 B2Contemporary Amperex Technology (Hong Kong) Limited
- Dryer for ceramic products8 Sep 2026US 12,729,912 B2System Ceramics S.P.A.
- Apparatus for feeding solid fuel feedstock into a furnace8 Oct 2026US 2026/0309324 A1British American Tobacco (Investments) Limited
- Multiple hearth furnace for placing a solid and a gas in contact8 Oct 2026US 2026/0309411 A1Avril
- Systems for drying of compositions and related methods8 Oct 2026US 2026/0309413 A1Ziccum AB
- Oven for heating an article on a conveyor1 Oct 2026US 2026/0298534 A1CPM Packaging Ltd
- Oven for heating an article on a conveyor1 Oct 2026US 2026/0298537 A1CPM Packaging Ltd
Most cited
By later US patents
- Very low temperature casting of controlled release microspheres443US 5,019,400 AEnzytech, Inc. · 1991
- Device for treating the pulp-canals of a tooth89US 4,021,921 A1977
- Liquid substances freeze-drying systems and methods83US 5,208,998 A1993
- Device and method for producing a material web80US 8,382,956 B2Voith Patent GmbH · 2013
- Methods and apparatus for making particles using spray dryer and in-line jet mill76US 6,918,991 B2Acusphere, Inc. · 2005