B03C 3/743
By using friction
Official title: {by using friction, e.g. by brushes or sliding elements}
B03C3/743 (By using friction) appears on 100 US grants and 130 published applications in this corpus.
Search patents in B03C- Granted patents
- 100
- Published applications
- 130
- Assignees
- 67
- Inventors
- 184
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 2 |
| 2002 | 4 | 13 |
| 2003 | 3 | 7 |
| 2004 | 3 | 15 |
| 2005 | 11 | 8 |
| 2006 | 4 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 4 |
| 2010 | 3 | 7 |
| 2011 | 3 | 5 |
| 2012 | 3 | 5 |
| 2013 | 6 | 2 |
| 2014 | 3 | 3 |
| 2015 | 2 | 6 |
| 2016 | 3 | 3 |
| 2017 | 5 | 3 |
| 2018 | 1 | 3 |
| 2019 | 2 | 5 |
| 2020 | 4 | 5 |
| 2021 | 5 | 2 |
| 2022 | 2 | 3 |
| 2023 | 5 | 10 |
| 2024 | 3 | 6 |
| 2025 | 5 | 7 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electrostatic precipitator with rotary collecting walls2 Jun 2026US 12,643,112 B2Nestec S. A.
- Fan assembly with self-cleaning device for generating ions2 Jun 2026US 12,646,906 B2Global Plasma Solutions, Inc.
- Particulate collecting device17 Mar 2026US 12,576,409 B2The Tyre Collective Ltd
- Self-cleaning device for generating ions6 Jan 2026US 12,516,836 B2Global Plasma Solutions, Inc.
- Electrostatic precipitator and additive manufacturing apparatus8 Jul 2025US 12,350,685 B2Sodick Co., Ltd.
- Electrostatic precipitator with rotary collecting walls24 Sep 2026US 2026/0284675 A1Nestec S.A.
- Photocatalytic purification device2 Jul 2026US 2026/0183711 A1Yunnan University
- Lithium recovery apparatus4 Jun 2026US 2026/0152868 A1Posco Holdings Inc.
- Ionizer and air conditioner equipped with same4 Dec 2025US 2025/0367681 A1Samsung Electronics Co., Ltd.
- Cleaner for an ionizer, operating method thereof and ionizer cleaning system21 Aug 2025US 2025/0262648 A1SK hynix Inc.
Most cited
By later US patents
- Electro-kinetic air transporter-conditioner122US 6,176,977 B1Sharper Image Corporation · 2001
- Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices102US 6,350,417 B1Sharper Image Corporation · 2002
- Personal electro-kinetic air transporter-conditioner73US 6,632,407 B1Sharper Image Corporation · 2003
- Electrostatic air cleaner with scraper cleaning of collector plates64US 4,284,420 A1981
- Self-cleaning air purification system and process64US 6,464,754 B1Kairos, L.L.C. · 2002