D01F 6/46
Of polyolefins
Official title: of polyolefins
D01F6/46 (Of polyolefins) appears on 434 US grants and 512 published applications in this corpus.
Search patents in D01F- Granted patents
- 434
- Published applications
- 512
- Assignees
- 252
- Inventors
- 1,194
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 8 | 0 |
| 1996 | 18 | 0 |
| 1997 | 12 | 0 |
| 1998 | 12 | 0 |
| 1999 | 17 | 0 |
| 2000 | 13 | 0 |
| 2001 | 21 | 10 |
| 2002 | 15 | 17 |
| 2003 | 16 | 18 |
| 2004 | 20 | 18 |
| 2005 | 6 | 33 |
| 2006 | 5 | 19 |
| 2007 | 10 | 19 |
| 2008 | 8 | 26 |
| 2009 | 7 | 20 |
| 2010 | 16 | 30 |
| 2011 | 14 | 20 |
| 2012 | 10 | 16 |
| 2013 | 8 | 18 |
| 2014 | 11 | 15 |
| 2015 | 7 | 13 |
| 2016 | 8 | 16 |
| 2017 | 11 | 23 |
| 2018 | 15 | 13 |
| 2019 | 7 | 25 |
| 2020 | 12 | 30 |
| 2021 | 18 | 32 |
| 2022 | 15 | 21 |
| 2023 | 13 | 23 |
| 2024 | 20 | 14 |
| 2025 | 15 | 16 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Spun-bonded nonwoven fabric and sanitary material25 Aug 2026US 12,716,154 B2Mitsui Chemicals Asahi Life Materials Co., Ltd.
- Composition of reclaimed synthetic turf and products comprising same11 Aug 2026US 12,703,950 B1Columbia Insurance Company
- Non-woven of spunbonded thermoplastic filaments having improved weldability properties and method for manufacturing such a non-woven28 Jul 2026US 12,691,198 B2Dounor SAS
- Filament composition17 Mar 2026US 12,576,572 B2Dow Global Technologies LLC
- Melt spinning resin composition, manufacturing method for same, and fiber manufacturing method17 Mar 2026US 12,577,703 B2Kao Corporation
- Non-woven of spunbonded thermoplastic filaments having improved weldability properties and method for manufacturing such a non-woven8 Oct 2026US 2026/0306698 A1Dounor SAS
- Artificial turf and production method16 Jul 2026US 2026/0201656 A1Polytex Sportbelage Produktions-GmbH
- Helical artificial turf fiber with anti-splicing agent7 May 2026US 2026/0125826 A1Polytex Sportbelage Produktions-GmbH
- Helical artificial turf fiber with different polymers in core and periphery7 May 2026US 2026/0125828 A1Polytex Sportbelage Produktions-GmbH
- Flash fabric having high tensile resilience7 May 2026US 2026/0125834 A1Jiangsu Kingwills New Material Co., Ltd.
Most cited
By later US patents
- Hydrophilic polypropylene fibers having antimicrobial activity1,367US 6,762,339 B13M Innovative Properties Company · 2004
- Isotactic propylene copolymers, their preparation and use180US 6,960,635 B2Dow Global Technologies LLC · 2005
- Elastic fibers and articles made therefrom, including crystalline and crystallizable polymers of propylene138US 6,342,565 B12002
- Plastomer compatibilized polyethylene/polypropylene blends117US 5,266,392 AExxon Chemical Patents Inc. · 1993
- Polyolefin fiber compositions117US 6,388,013 B1Equistar Chemicals, LP · 2002