D01H 4/28
Open-end spinning machines or arrangements for imparting twist to independently moving fibres
Official title: using electrostatic fields
D01H4/28 (Open-end spinning machines or arrangements for imparting twist to independently moving fibres) appears on 7 US grants and 2 published applications in this corpus.
Search patents in D01H- Granted patents
- 7
- Published applications
- 2
- Assignees
- 8
- Inventors
- 24
- Latest grant
- 23 Feb 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 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 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Linear fibrous formation with a coating of polymeric nanofibers enveloping a supporting linear formation constituting a core, a method and a device for producing it23 Feb 2021US 10,927,480 B2Technicka Univerzita V Liberci
- Apparatus for spinning textile fibers4 Sep 1984US 4,468,922 ABattelle Development Corporation
- Process for the manufacture of a plurality of filaments28 Oct 1980US 4,230,650 ABattelle Memorial Institute
- Process and apparatus for producing open-end spun yarn16 Oct 1979US 4,170,866 A
- Electrodes for electrostatic fiber collecting and spinning apparatus9 Aug 1977US 4,040,243 AThe United States of America as represented by the Secretary of Agriculture
- Linear Fibrous Formation with a Coating of Polymeric Nanofibers Enveloping a Supporting Linear Formation Constituting a Core, a Method and a Device for Producing It13 Dec 2018US 2018/0355521 A1Technicka Univerzita V Liberci
- Electrostatic intermingling device and a process for intermingling filaments24 May 2018US 2018/0142382 A1Reliance Industries Limited
Most cited
By later US patents
- Process for the manufacture of a plurality of filaments70US 4,230,650 ABattelle Memorial Institute · 1980
- Apparatus for spinning textile fibers57US 4,468,922 ABattelle Development Corporation · 1984
- Process and apparatus for producing spun yarn6US 4,028,871 ACor, Inc. · 1977
- Pneumatic and static electricity open-end spinning method and apparatus therefor5US 3,945,185 AOsaka Kiko Co., Ltd. · 1976
- Electrodes for electrostatic fiber collecting and spinning apparatus3US 4,040,243 AThe United States of America as represented by the Secretary of Agriculture · 1977