C08F 4/50
Selected from alkaline earth metals, zinc, cadmium, mercury, copper or silver
Official title: selected from alkaline earth metals, zinc, cadmium, mercury, copper or silver
C08F4/50 (Selected from alkaline earth metals, zinc, cadmium, mercury, copper or silver) appears on 55 US grants and 50 published applications in this corpus.
Search patents in C08F- Granted patents
- 55
- Published applications
- 50
- Assignees
- 55
- Inventors
- 161
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 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 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 5 | 2 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 6 |
| 2014 | 2 | 5 |
| 2015 | 8 | 5 |
| 2016 | 2 | 1 |
| 2017 | 1 | 2 |
| 2018 | 3 | 3 |
| 2019 | 1 | 4 |
| 2020 | 2 | 3 |
| 2021 | 2 | 3 |
| 2022 | 5 | 4 |
| 2023 | 1 | 0 |
| 2024 | 2 | 5 |
| 2025 | 1 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Telechelic polymers based on ethylene and 1,3 diene21 Apr 2026US 12,606,656 B2Centre National De La Recherche Scientifique
- Synthesis of block polymers based on 1,3-diene and ethylene7 Apr 2026US 12,595,331 B2Centre National De La Recherche Scientifique
- Use of metal complexes having organic ligands for activating olefin metathesis ruthenium (pre)catalysts24 Jun 2025US 12,338,310 B2Apeiron Synthesis Spolka Akcyjna
- Living radical polymerization method using zinc phthalocyanine dye as near-infrared photocatalyst24 Sep 2024US 12,098,223 B2Soochow University
- Symmetrical polyolefin block copolymer and preparation method therefor23 Apr 2024US 11,965,051 B2Ajou University Industry-Academic Cooperation Foundation
- Prepolymerized catalyst components for the polymerization of olefins27 Jun 2024US 2024/0209125 A1Basell Poliolefine Italia S.r.l.
- Polymerization initiator-containing composition and dental polymerizable composition6 Jun 2024US 2024/0180789 A1Sun Medical Co., Ltd.
- Synthesis of block polymers based on 1,3-diene and ethylene25 Jan 2024US 2024/0026058 A1Centre National De La Recherche Scientifique
- Process to prepare a solid support for a procatalyst for polymerization of olefins11 Jan 2024US 2024/0010759 A1Sabic Global Technologies B.V.
- Telechelic polymers based on ethylene and 1,3 diene11 Jan 2024US 2024/0010767 A1Centre National De La Recherche Scientifique
Most cited
By later US patents
- Increased throughput in the manufacture of anionic polymers by reduction in polymers by reduction in polymer cement viscosity through the addition of metal alkyls54US 6,492,469 B2KRATON Polymers U. S. LLC · 2002
- Free radical copper(II)-enolate polymerization initiators49US 5,470,928 AThe University of Akron · 1995
- Free radical copper(II)-enolate polymerization initiators43US 5,405,913 AThe University of Akron · 1995
- Synthesis of macrocyclic polymers having low hysteresis compounded properties43US 5,700,888 ABridgestone Corporation · 1997
- Macrocyclic polymers having low hysteresis compounded properties36US 5,936,029 ABridgestone Corporation · 1999