C08F 4/005
Friedel-crafts catalysts in general
Official title: {Friedel-Crafts catalysts in general}
C08F4/005 (Friedel-crafts catalysts in general) appears on 13 US grants and 11 published applications in this corpus.
Search patents in C08F- Granted patents
- 13
- Published applications
- 11
- Assignees
- 12
- Inventors
- 53
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 3 |
| 2020 | 0 | 1 |
| 2021 | 4 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Method for producing amino methylated bead polymerizates13 Apr 2021US 10,975,235 B2LANXESS Deutschland GmbH
- Polymerization of Michael-type and heterocyclic monomers19 Jan 2021US 10,894,845 B2Technische Universität München
- Carrier for olefin polymerization catalyst and application thereof, catalyst for olefin polymerization and application thereof, and olefin polymerization method21 Dec 2023US 2023/0406965 A1Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Process for the production of isobutene polymers with improved temperature control20 May 2021US 2021/0147590 A1Arlanxeo Deutschland GmbH
- Method for producing butene polymer27 Aug 2020US 2020/0270377 A1Jxtg Nippon Oil & Energy Corporation
- Polymerization of michael-type and heterocyclic monomers17 Oct 2019US 2019/0315894 A1Technische Universität München
- Polymerisation process10 Oct 2019US 2019/0309103 A1Ineos Europe AG
Most cited
By later US patents
- "Heterogeneous lewis acid-type catalysts"49US 5,663,470 AExxon Chemical Patents Inc. · 1997
- Production of polyisobutylene copolymers15US 6,444,768 B1ExxonMobil Chemical Patents Inc. · 2002
- Heterogeneous lewis acid-type catalysts7US 5,874,380 AExxon Chemical Patents Inc. · 1999
- Heterogeneous Lewis acid-type catalysts6US 5,877,371 AExxon Chemical Patents Inc. · 1999
- Process for polymerizing cationically polymerizable monomers4US 6,858,690 B2ExxonMobil Chemical Patents Inc. · 2005