C08F 4/12
Of boron, aluminium, gallium, indium, thallium or rare earths
Official title: of boron, aluminium, gallium, indium, thallium or rare earths
C08F4/12 (Of boron, aluminium, gallium, indium, thallium or rare earths) appears on 100 US grants and 107 published applications in this corpus.
Search patents in C08F- Granted patents
- 100
- Published applications
- 107
- Assignees
- 85
- Inventors
- 357
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 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 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 5 |
| 2003 | 3 | 1 |
| 2004 | 0 | 1 |
| 2005 | 2 | 0 |
| 2006 | 0 | 2 |
| 2007 | 2 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 0 | 2 |
| 2011 | 2 | 2 |
| 2012 | 2 | 5 |
| 2013 | 2 | 5 |
| 2014 | 5 | 3 |
| 2015 | 3 | 1 |
| 2016 | 6 | 7 |
| 2017 | 4 | 7 |
| 2018 | 5 | 4 |
| 2019 | 4 | 13 |
| 2020 | 5 | 7 |
| 2021 | 9 | 9 |
| 2022 | 9 | 5 |
| 2023 | 5 | 8 |
| 2024 | 2 | 6 |
| 2025 | 5 | 6 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process for preparing high-reactivity isobutene homo- or copolymers1 Sep 2026US 12,723,113 B2BASF SE
- Processes to produce poly alpha-olefins13 Jan 2026US 12,522,677 B2ExxonMobil Chemical Patents Inc.
- Catalyst composition for polymerization of α-olefin and preparation and use thereof23 Dec 2025US 12,503,523 B2PetroChina Company Limited
- Anionic polymerization process and polymer production method22 Apr 2025US 12,281,185 B2Kuraray Co., Ltd.
- Process for preparing random butadiene-isoprene copolymers having a high content of cis-1,4 units11 Mar 2025US 12,247,095 B2Versalis S.P.A.
- Olefin polymerization catalyst and method for producing olefin polymer25 Jun 2026US 2026/0176384 A1Toho Titanium Co., Ltd.
- Processes and processing plants for the removal of catalysts used in the manufacture of polyisobutylene and highly reactive polyisobutylene9 Apr 2026US 2026/0098109 A1NTP Tec, LLC
- Processes and processing plants for the removal of catalysts used in the manufacture of polyisobutylene and highly reactive polyisobutylene9 Apr 2026US 2026/0098110 A1NTP Tec, LLC
- Controlled Molecular Weight Distribution of Isobutylene-Based Elastomer Compositions and Methods Related Thereto2 Apr 2026US 2026/0092129 A1
- Process for preparing random butadiene-isoprene copolymers having a high content of cis-1,4 units10 Jul 2025US 2025/0223390 A1Versalis S.P.A.
Most cited
By later US patents
- Polyisobutenes289US 4,152,499 ABASF SE · 1979
- Lewis acid-catalyzed polymerization of biological oils and resulting polymeric materials78US 6,211,315 B1Iowa State University Research Foundation, Inc. · 2001
- Organic fluoride sources55US 4,871,786 AMinnesota Mining and Manufacturing Company · 1989
- Thermally-staged polymer process39US 3,959,225 AExxon Research & Engineering Co. · 1976
- Dual metallocene catalyst systems for decreasing melt index and increasing polymer production rates32US 8,329,834 B2Chevron Phillips Chemical Company LP · 2012