A21B 3/04
Air-treatment devices for ovens
Official title: Air-treatment devices for ovens, e.g. regulating humidity
A21B3/04 (Air-treatment devices for ovens) appears on 284 US grants and 269 published applications in this corpus.
Search patents in A21B- Granted patents
- 284
- Published applications
- 269
- Assignees
- 151
- Inventors
- 656
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 10 | 0 |
| 1998 | 1 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 2 | 3 |
| 2002 | 3 | 5 |
| 2003 | 6 | 5 |
| 2004 | 3 | 7 |
| 2005 | 12 | 18 |
| 2006 | 10 | 18 |
| 2007 | 5 | 18 |
| 2008 | 6 | 15 |
| 2009 | 4 | 11 |
| 2010 | 12 | 9 |
| 2011 | 7 | 10 |
| 2012 | 3 | 7 |
| 2013 | 6 | 3 |
| 2014 | 8 | 13 |
| 2015 | 8 | 11 |
| 2016 | 7 | 12 |
| 2017 | 10 | 15 |
| 2018 | 11 | 13 |
| 2019 | 13 | 12 |
| 2020 | 10 | 15 |
| 2021 | 11 | 11 |
| 2022 | 7 | 14 |
| 2023 | 8 | 7 |
| 2024 | 10 | 7 |
| 2025 | 11 | 5 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of operating a cooking oven, in particular a steam cooking oven24 Mar 2026US 12,584,635 B2Electrolux Appliances Aktiebolag
- Aerospace galley insert comprising oven24 Feb 2026US 12,559,236 B2B/E Aerospace, Inc.
- Catalyst assembly for an indoor pizza oven appliance10 Feb 2026US 12,543,745 B2Haier US Appliance Solutions, Inc.
- Modular steam cooking system for a home cooking appliance10 Feb 2026US 12,546,479 B2BSH Hausgeräte GmbH
- Combination oven with independent steam generation element18 Nov 2025US 12,474,066 B2Alto-Shaam, Inc.
- Combination oven with time-based humidity steam control6 Aug 2026US 2026/0227073 A1Illinois Tool Works Inc.
- Combination oven and associated oven delime process9 Jul 2026US 2026/0194234 A1Illinois Tool Works Inc.
- Spiral conveyor thermal processing system7 May 2026US 2026/0123635 A1JBT Marel Corporation
- Process technology and method for preparing bio-ingredients, foods and beverages in absence of oxygen23 Apr 2026US 2026/0107953 A1
- Steam cooking method8 Jan 2026US 2026/0007136 A1Electrolux Consumer Products, Inc.
Most cited
By later US patents
- Subatmospheric pressure cook-and-hold steaming oven97US 5,235,903 A1993
- No waste cooking oven with multiple cooking functions96US 7,451,691 B22008
- Combination convection and steamer oven91US 4,700,685 ALincoln Foodservice Products, Inc. · 1987
- Electric combination oven with humidity conditioner86US 5,525,782 AMatsushita Electric Industrial Co., Ltd. · 1996
- Combination oven with peak power control85US 9,841,261 B2Alto-Shaam, Inc. · 2017