D01H 4/22
Cleaning of running surfaces
D01H4/22 (Cleaning of running surfaces) appears on 71 US grants and 19 published applications in this corpus.
Search patents in D01H- Granted patents
- 71
- Published applications
- 19
- Assignees
- 30
- Inventors
- 98
- Latest grant
- 5 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 8 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 3 |
| 2004 | 2 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 2 |
| 2018 | 2 | 3 |
| 2019 | 1 | 2 |
| 2020 | 2 | 2 |
| 2021 | 2 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Spinning position with a cleaning nozzle and method of cleaning a yarn forming element5 Dec 2023US 11,834,759 B2Saurer Intelligent Technology AG
- Cleaning device for cleaning a rotor disk of a spinning rotor15 Jun 2021US 11,035,057 B2Maschinenfabrik Rieter AG
- Method for operating a spinning machine of a rotor spinning machine, and spinning machine of a rotor spinning machine8 Jun 2021US 11,028,503 B2Maschinenfabrik Rieter AG
- Method for cleaning a spinning rotor of open-end spinning machine having at least one spinning device, and a cleaning device for cleaning a spinning rotor24 Nov 2020US 10,844,522 B2Maschinenfabrik Rieter AG
- Thread-guiding unit, open-end spinning machine and method for operating a spinning station23 Jun 2020US 10,689,779 B2Rieter Ingolstadt GmbH
- Spinning device, rotor spinning machine, and method for preventing the accumulation of fibres in a spinning device2 Jan 2025US 2025/0003118 A1Saurer Spinning Solutions GmbH & Co. KG
- Method for operating a spinning station of a rotor spinning machine and rotor spinning machine20 Jul 2023US 2023/0228007 A1
- Spinning position with a cleaning nozzle and method of cleaning a yarn forming element23 Jun 2022US 2022/0195634 A1Saurer Intelligent Technology AG
- Workstation of a Rotor Spinning Machine Comprising a Cleaning Unit and Method for Operating Such a Device25 Jun 2020US 2020/0199789 A1Maschinenfabrik Rieter AG
- Cleaning device for cleaning a rotor plate of a spinning rotor, comprising a cleaning head30 Jan 2020US 2020/0032425 A1Maschinenfabrik Rieter AG
Most cited
By later US patents
- Friction spinning apparatus and method for cleaning28US 4,380,892 A1983
- Open-end spinning machine having spinning units with removal opening for impurities21US 4,038,812 A1977
- Mobile servicing device for an open end spinning frame19US 4,125,991 A1978
- Open-end spinning machine with a plurality of spinning units and with at least one servicing device15US 4,058,963 A1977
- Method and device for cleansing spinning turbines of a spinning machine14US 4,028,136 AW. Schlafhorst AG & Co. · 1977