D01H 4/16
Friction spinning, i.e. the running surface being provided by a pair of
Official title: Friction spinning, i.e. the running surface being provided by a pair of closely spaced friction drums, e.g. at least one suction drum {(false twisting with friction drums D01H1/11)}
D01H4/16 (Friction spinning, i.e. the running surface being provided by a pair of) appears on 114 US grants and 7 published applications in this corpus.
Search patents in D01H- Granted patents
- 114
- Published applications
- 7
- Assignees
- 29
- Inventors
- 86
- Latest grant
- 16 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 12 | 0 |
| 1986 | 18 | 0 |
| 1987 | 22 | 0 |
| 1988 | 12 | 0 |
| 1989 | 7 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 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 | 2 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method of producing a yarn and a fabric having the look and feel of natural fibers16 Apr 2024US 11,959,200 B2Sanko Tekstil Isletmeleri San. Ve Tic. A. S.
- Method of producing a yarn and a fabric having the look and feel of natural fibers21 Dec 2021US 11,203,820 B2Sanko Tekstil Isletmeleri San. Ve Tic. A. S.
- Method and apparatus for producing fibre yarn5 Sep 2017US 9,752,257 B2Spinnova Oy
- Method and apparatus for producing fibre yarn26 Apr 2016US 9,322,117 B2Spinnova Oy
- Method and apparatus for producing fibre yarn22 Mar 2016US 9,290,864 B2Spinnova Oy
- Method of producing a yarn and a fabric having the look and feel of natural fibers14 Apr 2022US 2022/0112631 A1Sanko Tekstil Isletmeleri San. Ve Tic. A. S.
- Method of producing a yarn and a fabric having the look and feel of natural fibers24 Jan 2019US 2019/0024266 A1Sanko Tekstil Isletmeleri San. Ve Tic. A. S.
- Method and apparatus for producing fibre yarn19 Jan 2017US 2017/0016151 A1Spinnova Oy
- Method and apparatus for producing fibre yarn9 Jun 2016US 2016/0160400 A1Spinnova Oy
- Method and apparatus for producing fibre yarn15 Oct 2015US 2015/0292121 A1Spinnova Oy
Most cited
By later US patents
- Selective twist filtration roving48US 4,801,383 AMemtec North America Corporation · 1989
- Spinning process and apparatus39US 4,202,163 ABarmag Barmer Maschinenfabrik AG · 1980
- Frictional open-end spinning method and apparatus32US 4,168,601 AVyzkumny ustav bavlnarsky · 1979
- Yarn spinning apparatus and process28US 4,130,983 ABarmag Barmer Maschinenfabrik AG · 1978
- Apparatus for spinning textile fibers27US 4,107,909 ADr. Ernst Fehrer Gesellschaft m.b.H. & Co., K.G. · 1978