B01J 2231/14
Other polymerisation
Official title: Other (co) polymerisation, e.g. of lactides or epoxides
B01J2231/14 (Other polymerisation) appears on 236 US grants and 232 published applications in this corpus.
Search patents in B01J- Granted patents
- 236
- Published applications
- 232
- Assignees
- 143
- Inventors
- 551
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 10 | 0 |
| 2000 | 12 | 0 |
| 2001 | 19 | 2 |
| 2002 | 7 | 12 |
| 2003 | 12 | 14 |
| 2004 | 9 | 4 |
| 2005 | 5 | 18 |
| 2006 | 5 | 5 |
| 2007 | 6 | 7 |
| 2008 | 3 | 9 |
| 2009 | 2 | 8 |
| 2010 | 9 | 10 |
| 2011 | 4 | 7 |
| 2012 | 7 | 6 |
| 2013 | 2 | 9 |
| 2014 | 7 | 16 |
| 2015 | 10 | 20 |
| 2016 | 16 | 15 |
| 2017 | 15 | 7 |
| 2018 | 10 | 12 |
| 2019 | 3 | 10 |
| 2020 | 6 | 8 |
| 2021 | 6 | 6 |
| 2022 | 3 | 4 |
| 2023 | 8 | 11 |
| 2024 | 4 | 4 |
| 2025 | 2 | 5 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Non-metal catalyst for synthesizing polycarbonate by CO2 and preparation method therefor31 Mar 2026US 12,589,384 B2Wuhan Institute of Technology
- Tri-(adamantyl) phosphines and applications thereof3 Feb 2026US 12,539,508 B2The Trustees of Princeton University
- Ethoxylated glycerol esters and method for the production thereof25 Nov 2025US 12,479,957 B2Clariant International Ltd.
- Heterogeneous catalyst with multicatalytic activity8 Apr 2025US 12,269,019 B2Instituto Mexicano Del Petroleo
- Isopoly-vanadic acid coordination polymer catalyst, method of manufacturing the same, and application thereof11 Jun 2024US 12,005,428 B2Changzhou University
- Preparation method of double metal cyanide catalyst for preparing a polycarbonate-ether23 Jul 2026US 2026/0208170 A1
- Tri-(adamantyl)phosphines and applications thereof16 Apr 2026US 2026/0102762 A1The Trustees of Princeton University
- Double metal cyanide complex catalyst and method for producing same, double metal cyanide complex slurry catalyst and method for producing same, and polymer production method19 Mar 2026US 2026/0077342 A1AGC Inc.
- Catalyst for polyester depolymerization or cyclic ester synthesis, preparation method therefor and use thereof23 Oct 2025US 2025/0325970 A1Sichuan University
- Heterogeneous catalyst with multicatalytic activity10 Jul 2025US 2025/0222445 A1Instituto Mexicano Del Petroleo
Most cited
By later US patents
- High metathesis activity ruthenium and osmium metal carbene complexes146US 5,831,108 ACalifornia Institute of Technology · 1998
- Olefin metathesis coupling using ruthenium and osmium carbene complexes113US 5,750,815 ACalifornia Institute of Technology · 1998
- Method of preparing ruthenium and osmium carbene complexes104US 5,710,298 ACalifornia Institute of Technology · 1998
- Polyether-containing double metal cyanide catalysts103US 5,545,601 AARCO Chemical Technology, L. P. · 1996
- Polymer depolymerization using ruthenium and osmium carbene complexes98US 5,728,917 ACalifornia Institute of Technology · 1998