E03D 9/04
Special arrangement or operation of ventilating devices
Official title: Special arrangement or operation of ventilating devices (ventilating rooms in general F24F)
E03D9/04 (Special arrangement or operation of ventilating devices) appears on 478 US grants and 452 published applications in this corpus.
Search patents in E03D- Granted patents
- 478
- Published applications
- 452
- Assignees
- 117
- Inventors
- 881
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 8 | 0 |
| 1978 | 9 | 0 |
| 1979 | 8 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 13 | 0 |
| 1992 | 10 | 0 |
| 1993 | 11 | 0 |
| 1994 | 19 | 0 |
| 1995 | 8 | 0 |
| 1996 | 12 | 0 |
| 1997 | 9 | 0 |
| 1998 | 16 | 0 |
| 1999 | 11 | 0 |
| 2000 | 12 | 0 |
| 2001 | 15 | 4 |
| 2002 | 12 | 12 |
| 2003 | 11 | 11 |
| 2004 | 11 | 12 |
| 2005 | 3 | 12 |
| 2006 | 5 | 31 |
| 2007 | 4 | 23 |
| 2008 | 6 | 24 |
| 2009 | 4 | 13 |
| 2010 | 10 | 18 |
| 2011 | 6 | 11 |
| 2012 | 9 | 15 |
| 2013 | 10 | 19 |
| 2014 | 5 | 22 |
| 2015 | 10 | 16 |
| 2016 | 15 | 17 |
| 2017 | 18 | 29 |
| 2018 | 20 | 20 |
| 2019 | 18 | 18 |
| 2020 | 14 | 18 |
| 2021 | 10 | 15 |
| 2022 | 10 | 18 |
| 2023 | 10 | 24 |
| 2024 | 15 | 25 |
| 2025 | 16 | 17 |
| 2026 | 15 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems for human waste collection and processing29 Sep 2026US 12,747,570 B2Hamilton Sundstrand Space Systems International, Inc.
- Vehicle lavatory with air replenishment system8 Sep 2026US 12,728,996 B2Safran Cabin Inc.
- Systems for human waste collection and processing1 Sep 2026US 12,723,392 B2Hamilton Sundstrand Space Systems International, Inc.
- Ventilation connector and exhaust flange28 Jul 2026US 12,692,690 B1
- Air odor removal system and toilet bowl plate with sewage plumbing attachment for a toilet assembly21 Jul 2026US 12,687,002 B2
- Clean toilet and accessories10 Sep 2026US 2026/0266036 A1Kohler Co.
- Lavatory mirror de-fogging fan6 Aug 2026US 2026/0226726 A1
- Toilet Deodorizing Device16 Jul 2026US 2026/0201685 A1
- Suction and odour evacuation system with passive and continuous hydraulic sealing2 Jul 2026US 2026/0185340 A1
- Bidet2 Jul 2026US 2026/0185341 A1Coway Co., Ltd.
Most cited
By later US patents
- Odor control device126US 4,830,791 AScentex, Inc. · 1989
- Activated carbon adsorbent and applications thereof124US 5,403,548 ATakeda Chemical Industries, Ltd. · 1995
- Activated carbon honeycombs and applications thereof116US 5,288,306 ATakeda Chemical Industries, Ltd. · 1994
- Bath fan and heater with cover having adjustable luver or depressible fastener and depressible release66US 9,103,104 B1Chien Luen Industries Co., Ltd., Inc. · 2015
- 110 CFM bath fan with and without light56US 9,022,846 B1Chien Luen Industries Co., Ltd., Inc. · 2015