C08L 2314/02
Ziegler natta catalyst
C08L2314/02 (Ziegler natta catalyst) appears on 481 US grants and 539 published applications in this corpus.
Search patents in C08L- Granted patents
- 481
- Published applications
- 539
- Assignees
- 166
- Inventors
- 1,162
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 6 | 0 |
| 1995 | 0 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 6 | 0 |
| 2001 | 17 | 3 |
| 2002 | 16 | 12 |
| 2003 | 18 | 10 |
| 2004 | 7 | 13 |
| 2005 | 6 | 23 |
| 2006 | 18 | 16 |
| 2007 | 10 | 8 |
| 2008 | 5 | 12 |
| 2009 | 4 | 9 |
| 2010 | 8 | 10 |
| 2011 | 13 | 8 |
| 2012 | 3 | 15 |
| 2013 | 11 | 16 |
| 2014 | 13 | 16 |
| 2015 | 12 | 25 |
| 2016 | 24 | 41 |
| 2017 | 23 | 38 |
| 2018 | 29 | 37 |
| 2019 | 24 | 24 |
| 2020 | 28 | 43 |
| 2021 | 23 | 32 |
| 2022 | 35 | 34 |
| 2023 | 22 | 30 |
| 2024 | 14 | 29 |
| 2025 | 21 | 18 |
| 2026 | 15 | 17 |
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
- Olefin polymerization method and system1 Sep 2026US 12,723,108 B2China Petroleum & Chemical Corporation
- Polyethylene composition for biaxial orientation1 Sep 2026US 12,723,148 B2NOVA Chemicals (International) S.A.
- Linear high-density ethylene interpolymer compositions25 Aug 2026US 12,715,983 B2NOVA Chemicals (International) S.A.
- Polyolefin compositions7 Jul 2026US 12,674,048 B2Dow Global Technologies LLC
- Solution-phase polymerization process1 Oct 2026US 2026/0297308 A1NOVA Chemicals (International) S.A.
- Polyolefin compositions24 Sep 2026US 2026/0286114 A1Dow Global Technologies LLC
- Propylene-based copolymer compositon24 Sep 2026US 2026/0286115 A1Basell Poliolefine Italia S.r.l.
- Methods for producing bimodal polyolefins and impact copolymers17 Sep 2026US 2026/0275011 A1ExxonMobil Chemical Patents Inc.
- Polyolefin composition containing a recycled material13 Aug 2026US 2026/0234378 A1Basell Poliolefine Italia S.r.l.
Most cited
By later US patents
- Process for producing a polymer composition290US 6,388,017 B1Phillips Petroleum Company · 2002
- Ethylene interpolymerizations234US 5,844,045 AThe Dow Chemical Company · 1998
- Ethylene interpolymerizations221US 5,869,575 AThe Dow Chemical Company · 1999
- Narrow MWD alpha-olefin copolymers206US 4,540,753 AExxon Research & Engineering Co. · 1985
- Ethylene interpolymer blend compositions199US 6,448,341 B1The Dow Chemical Company · 2002