C08F 4/08
Of alkali metals
Official title: of alkali metals
C08F4/08 (Of alkali metals) appears on 26 US grants and 33 published applications in this corpus.
Search patents in C08F- Granted patents
- 26
- Published applications
- 33
- Assignees
- 22
- Inventors
- 84
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 2 | 2 |
| 2015 | 2 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 7 |
| 2019 | 1 | 3 |
| 2020 | 4 | 1 |
| 2021 | 4 | 4 |
| 2022 | 1 | 0 |
| 2023 | 2 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 2 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Glycidyl-containing polymers, polymer compositions comprising them and their use in electrochemical cells3 Feb 2026US 12,540,207 B2Hydro-Quebec
- Heavy metal- and odour-free nanoparticulate compositions30 Apr 2024US 11,970,563 B2Agency for Science, Technology and Research
- Production method for cyclic olefin copolymer and catalyst composition for copolymerization of norbornene monomer and ethylene24 Oct 2023US 11,795,256 B2Polyplastics Co., Ltd.
- Polymer production method and radical polymerization initiating group-containing compound5 Sep 2023US 11,746,178 B2Dainichiseika Color & Chemicals Mfg. Co., Ltd.
- Method for preparing 2-cyanoethyl group-containing polymer6 Sep 2022US 11,434,314 B2LG Chem, Ltd.
- Thermoplastic Resin, Preparation Method Therefor, and Use Thereof30 Apr 2026US 2026/0117008 A1Topolefin Technology (Quzhou) Co., Ltd.
- Glycidyl-containing polymers, polymer compositions comprising them and their use in electrochemical cells16 Apr 2026US 2026/0103555 A1Hydro-Quebec
- Polymer brushes with chain-ends functionalized with metal coordinating two hetero elements for selective surface modification12 Feb 2026US 2026/0042873 A1Merck Patent GmbH
- Articles comprising ethylene-based polymer, polyolefin, silane crosslinker, and metallic stearate catalyst27 Mar 2025US 2025/0101216 A1Avient Corporation
- Thermoplastic Elastomers of High Vinyl Block Copolymer Compositions9 Jan 2025US 2025/0011519 A1Dynasol Elastómeros, S.A. de C.V.
Most cited
By later US patents
- Solubilized anionic polymerization initiator and preparation thereof93US 5,332,810 ABridgestone Corporation · 1994
- Functionalized polymer and rubber compositions produced from solubilized anionic polymerization initiators28US 5,552,473 ABridgestone Corporation · 1996
- Solubilized anionic polymerization initiators7US 5,616,704 ABridgestone Corporation · 1997
- Silyl-diamine initiators for anionic polymerization of 1,3-butadiene and styrene, and rubber compositions7US 7,767,774 B2Bridgestone Corporation · 2010
- Water soluble chain transfer agents6US 10,280,101 B2The Lubrizol Corporation · 2019