B03C 3/36
Controlling flow of gases or vapour
B03C3/36 (Controlling flow of gases or vapour) appears on 407 US grants and 449 published applications in this corpus.
Search patents in B03C- Granted patents
- 407
- Published applications
- 449
- Assignees
- 306
- Inventors
- 932
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 1 |
| 2002 | 1 | 4 |
| 2003 | 4 | 10 |
| 2004 | 6 | 9 |
| 2005 | 12 | 15 |
| 2006 | 8 | 8 |
| 2007 | 5 | 11 |
| 2008 | 5 | 9 |
| 2009 | 12 | 14 |
| 2010 | 15 | 16 |
| 2011 | 11 | 18 |
| 2012 | 8 | 20 |
| 2013 | 19 | 22 |
| 2014 | 14 | 18 |
| 2015 | 16 | 17 |
| 2016 | 13 | 22 |
| 2017 | 17 | 21 |
| 2018 | 16 | 32 |
| 2019 | 21 | 23 |
| 2020 | 24 | 20 |
| 2021 | 12 | 19 |
| 2022 | 19 | 27 |
| 2023 | 17 | 35 |
| 2024 | 21 | 29 |
| 2025 | 22 | 20 |
| 2026 | 9 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Particle collection vessel, particle collection device and particle collection method6 Oct 2026US 12,752,284 B2Amano Corporation
- Air conditioning apparatus15 Sep 2026US 12,734,472 B2LG Electronics Inc.
- Ion generator and system with mobile HVAC1 Sep 2026US 12,722,161 B2Dometic Sweden AB
- Ion generating apparatus1 Sep 2026US 12,722,162 B2Panasonic Ecology Systems Guangdong Co., Ltd.
- Methods and systems for negative ion-based and radiation-based pollution reduction7 Jul 2026US 12,673,332 B2Rainlons Corp.
- Air conditioner17 Sep 2026US 2026/0276225 A1Samsung Electronics Co., Ltd.
- Ionic Personal Exhalant Filter30 Jul 2026US 2026/0215495 A1Philter Labs, Inc.
- Ducted Ventilation System, Particle Collection Unit and Method30 Jul 2026US 2026/0218929 A1E. Khoury Holding B.V.
- Devices and methods to reduce air pollution and global warming23 Jul 2026US 2026/0208207 A1Temple University of the Commonwealth System of Higher Education
- Smart multifunction air purification and ventilation9 Jul 2026US 2026/0194247 A1Nature's Cooling Solutions
Most cited
By later US patents
- Two stage electrostatic precipitator with electric field induced airflow120US 4,231,766 AUnited Air Specialists, Inc. · 1980
- Electro-kinetic air refreshener-conditioner with optional night light103US 6,163,098 ASharper Image Corporation · 2000
- An electrostatic air cleaning device having ionization apparatus which causes the air to flow therethrough93US 4,496,375 A1985
- Portable electronic precipitator67US 4,163,650 ATepco Ltd. · 1979
- Air purifier64US 7,537,647 B2S. C. Johnson & Son, Inc. · 2009