C08F 4/20
Of antimony, bismuth, vanadium, niobium or tantalum
Official title: of antimony, bismuth, vanadium, niobium or tantalum
C08F4/20 (Of antimony, bismuth, vanadium, niobium or tantalum) appears on 11 US grants and 19 published applications in this corpus.
Search patents in C08F- Granted patents
- 11
- Published applications
- 19
- Assignees
- 16
- Inventors
- 44
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 3 |
| 2019 | 0 | 3 |
| 2020 | 4 | 2 |
| 2021 | 1 | 2 |
| 2022 | 2 | 3 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year.
Recent patents
- Glass powder and chemical polymerization initiator4 Nov 2025US 12,460,021 B2GC Corporation
- Components and catalysts for the polymerization of olefins11 Oct 2022US 11,466,107 B2Basell Poliolefine Italia S.r.l.
- Curable composition19 Apr 2022US 11,306,160 B2Mitsui Chemicals, Inc.
- Initiator system for cationic polymerization of olefins9 Nov 2021US 11,168,100 B2Arlanxeo Singapore Pte. Ltd.
- High molecular weight multimodal elastomer compositions with good processability27 Oct 2020US 10,815,325 B2ExxonMobil Chemical Patents Inc.
- Method of preparing epdm copolymer15 May 2025US 2025/0154294 A1SK Geo Centric Co., Ltd.
- Glass powder and chemical polymerization initiator20 Oct 2022US 2022/0332857 A1GC Corporation
- Phosphinic vanadium complex, catalytic system comprising said phosphinic vanadium complex and process for the (co) polymerization of conjugated dienes9 Jun 2022US 2022/0177500 A1Versalis S.P.A.
- Crosslinking agents for polymeric systems26 May 2022US 2022/0162401 A1Henkel AG & Co. KGaA
- Components and catalysts for the polymerization of olefins2 Sep 2021US 2021/0269564 A1Basell Poliolefine Italia S.r.l.
Most cited
By later US patents