C08L 2308/00
Chemical blending or stepwise polymerisation process with the same catalyst
C08L2308/00 (Chemical blending or stepwise polymerisation process with the same catalyst) appears on 434 US grants and 453 published applications in this corpus.
Search patents in C08L- Granted patents
- 434
- Published applications
- 453
- Assignees
- 129
- Inventors
- 1,074
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 15 | 5 |
| 2002 | 23 | 16 |
| 2003 | 16 | 20 |
| 2004 | 17 | 19 |
| 2005 | 9 | 11 |
| 2006 | 9 | 22 |
| 2007 | 6 | 17 |
| 2008 | 7 | 17 |
| 2009 | 7 | 11 |
| 2010 | 16 | 17 |
| 2011 | 19 | 7 |
| 2012 | 7 | 13 |
| 2013 | 10 | 25 |
| 2014 | 20 | 14 |
| 2015 | 23 | 26 |
| 2016 | 25 | 23 |
| 2017 | 17 | 18 |
| 2018 | 23 | 23 |
| 2019 | 18 | 19 |
| 2020 | 15 | 24 |
| 2021 | 17 | 20 |
| 2022 | 22 | 24 |
| 2023 | 14 | 14 |
| 2024 | 6 | 28 |
| 2025 | 17 | 14 |
| 2026 | 9 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- In-situ reactor blend of Ziegler-Natta catalysed, nucleated polypropylene and a metallocene catalysed polypropylene29 Sep 2026US 12,747,308 B2Borealis AG
- Linear high-density ethylene interpolymer compositions25 Aug 2026US 12,715,983 B2NOVA Chemicals (International) S.A.
- Dual catalyst system for producing high density polyethylenes with long chain branching26 May 2026US 12,637,526 B2Chevron Phillips Chemical Company LP
- Polymer composition for caps and closures12 May 2026US 12,624,134 B2Ineos Europe AG
- Compositions with multimodal ethylene-based polymers having improved toughness at low temperatures5 May 2026US 12,617,883 B2Dow Global Technologies LLC
- Polypropylene random copolymer compositions with improved impact resistance for pipe applications30 Jul 2026US 2026/0217959 A1Abu Dhabi Polymers Co. Ltd (Borouge) - Sole Proprietorship L.L.C.
- Compositon for automotive exterior parts25 Jun 2026US 2026/0176456 A1Borealis AG
- Process for controlling the swell ratio of a polyethylene composition11 Jun 2026US 2026/0159675 A1Basell Polyolefine GmbH
- Propylene composition for foaming with high melt flow rate14 May 2026US 2026/0132269 A1
- Crosslinkable polymer composition, crosslinked product, and crosslinked foam8 Jan 2026US 2026/0008918 A1Zeon Corporation
Most cited
By later US patents
- Ethylene interpolymerizations234US 5,844,045 AThe Dow Chemical Company · 1998
- Ethylene interpolymerizations221US 5,869,575 AThe Dow Chemical Company · 1999
- Ethylene interpolymer polymerizations204US 6,566,446 B1Dow Global Technologies LLC · 2003
- Ethylene interpolymer polymerizations153US 6,538,070 B1Dow Global Technologies LLC · 2003
- Narrow MWD, compositionally optimized ethylene interpolymer composition, process for making the same and article made therefrom76US 6,469,103 B1The Dow Chemical Company · 2002