C08F 4/656
With silicon or compounds thereof
Official title: with silicon or compounds thereof
C08F4/656 (With silicon or compounds thereof) appears on 24 US grants and 32 published applications in this corpus.
Search patents in C08F- Granted patents
- 24
- Published applications
- 32
- Assignees
- 14
- Inventors
- 88
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 2 | 3 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 3 |
| 2019 | 1 | 4 |
| 2020 | 3 | 7 |
| 2021 | 4 | 1 |
| 2022 | 3 | 1 |
| 2023 | 2 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process to prepare a procatalyst for polymerization of olefins3 Mar 2026US 12,565,549 B2Sabic Global Technologies B.V.
- Process for preparing solid catalyst components for olefin polymerization4 Mar 2025US 12,240,925 B2W. R. Grace & Co.-Conn.
- Olefin polymer and method for producing olefin polymer27 Feb 2024US 11,912,796 B2Toho Titanium Co., Ltd.
- Catalyst components for propylene polymerization25 Apr 2023US 11,634,520 B2W. R. Grace & Co.-Conn.
- Process for manufacture of low emission homopolymer or random polypropylene3 Jan 2023US 11,542,349 B2Sabic Global Technologies B.V.
- Process6 Aug 2026US 2026/0226202 A1Ineos Europe AG
- Catalyst components for the polymerization of olefins2 Apr 2026US 2026/0092131 A1Basell Poliolefine Italia S.r.l.
- Process for preparing a propylene composition18 Sep 2025US 2025/0289914 A1Sabic Global Technologies B.V.
- Olefin polymerization ziegler-natta catalyst components andprocess for the production of olefin polymers therewith23 Jan 2025US 2025/0026868 A1Formosa Plastics Corporation, U. S. A
- Catalyst component for ziegler-natta olefin polymerisation catalyst productivity22 Feb 2024US 2024/0059804 A1Sabic Global Technologies B.V.
Most cited
By later US patents
- Organosilicon compound, catalyst for olefin polymer production, and method for producing olefin polymer12US 6,552,136 B1Idemitsu Petrochemical Co., Ltd. · 2003
- Propylene homopolymer11US 6,090,903 AToho Titanium Co., Ltd. · 2000
- Magnesium compound, olefin polymerization catalyst, and method for producing olefin polymer8US 6,777,365 B2Idemitsu Petrochemical Co., Ltd. · 2004
- Pre-polymerized catalyst components for the polymerization of olefins3US 7,223,711 B2Basell Polyolefine GmbH · 2007
- Process for producing catalyst for α-olefin polymerization and process for producing α-olefin polymer2US 7,049,263 B2Sumitomo Chemical Company, Limited · 2006