B03C 3/34
Constructional details or accessories or operation thereof
B03C3/34 (Constructional details or accessories or operation thereof) appears on 2,027 US grants and 1,781 published applications in this corpus.
Search patents in B03C- Granted patents
- 2,027
- Published applications
- 1,781
- Assignees
- 1,027
- Inventors
- 3,607
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 41 | 0 |
| 1977 | 27 | 0 |
| 1978 | 33 | 0 |
| 1979 | 21 | 0 |
| 1980 | 38 | 0 |
| 1981 | 47 | 0 |
| 1982 | 34 | 0 |
| 1983 | 19 | 0 |
| 1984 | 24 | 0 |
| 1985 | 38 | 0 |
| 1986 | 26 | 0 |
| 1987 | 43 | 0 |
| 1988 | 30 | 0 |
| 1989 | 25 | 0 |
| 1990 | 23 | 0 |
| 1991 | 29 | 0 |
| 1992 | 24 | 0 |
| 1993 | 17 | 0 |
| 1994 | 20 | 0 |
| 1995 | 24 | 0 |
| 1996 | 27 | 0 |
| 1997 | 30 | 0 |
| 1998 | 25 | 0 |
| 1999 | 29 | 0 |
| 2000 | 30 | 0 |
| 2001 | 34 | 8 |
| 2002 | 25 | 34 |
| 2003 | 35 | 33 |
| 2004 | 22 | 61 |
| 2005 | 46 | 66 |
| 2006 | 42 | 76 |
| 2007 | 48 | 70 |
| 2008 | 54 | 67 |
| 2009 | 44 | 66 |
| 2010 | 57 | 88 |
| 2011 | 45 | 80 |
| 2012 | 52 | 69 |
| 2013 | 71 | 69 |
| 2014 | 55 | 62 |
| 2015 | 47 | 64 |
| 2016 | 50 | 71 |
| 2017 | 59 | 77 |
| 2018 | 49 | 75 |
| 2019 | 61 | 71 |
| 2020 | 54 | 81 |
| 2021 | 65 | 96 |
| 2022 | 61 | 121 |
| 2023 | 46 | 102 |
| 2024 | 72 | 77 |
| 2025 | 73 | 69 |
| 2026 | 36 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B03C 3/40Electrode constructions1,182
- B03C 3/66Applications of electricity supply techniques592
- B03C 3/38Particle charging or ionising stations422
- B03C 3/36Controlling flow of gases or vapour407
- B03C 3/74Cleaning the electrodes332
- B03C 3/86Electrode-carrying means219
- B03C 3/82Housings124
- B03C 3/88Cleaning-out collected particles74
All 9 subgroupsShow fewer
Recent patents
- Particle collection vessel, particle collection device and particle collection method6 Oct 2026US 12,752,284 B2Amano Corporation
- Inverter apparatus provided with dust collecting unit6 Oct 2026US 12,752,285 B2Ls Electric Co., Ltd.
- Membrane for collecting airborne particles22 Sep 2026US 12,741,287 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Air conditioning apparatus15 Sep 2026US 12,734,472 B2LG Electronics Inc.
- Electrostatic precipitator and control method thereof8 Sep 2026US 12,728,424 B2Samsung Electronics Co., Ltd.
- Hybrid filter unit8 Oct 2026US 2026/0307082 A1Brairtech Sweden AB
- Insulator and wet electrostatic precipitator having the same8 Oct 2026US 2026/0307083 A1
- Caliper-type electrostatic precipitator and vehicle braking device including same1 Oct 2026US 2026/0298299 A1Korea Institute of Machinery & Materials
- Electrostatic precipitator with rotary collecting walls24 Sep 2026US 2026/0284675 A1Nestec S.A.
- Air conditioner17 Sep 2026US 2026/0276225 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Electrokinetic transducing methods and apparatus and systems comprising or utilizing the same130US 4,789,801 AZenion Industries, Inc. · 1988
- Miniature air purifier126US 5,484,472 A1996
- Air cleaner using ionic wind123US 4,643,745 ANippon Soken, Inc. · 1987
- Electro-kinetic air transporter-conditioner122US 6,176,977 B1Sharper Image Corporation · 2001
- Two stage electrostatic precipitator with electric field induced airflow120US 4,231,766 AUnited Air Specialists, Inc. · 1980