C08G 65/02
From cyclic ethers by opening of the heterocyclic ring
Official title: from cyclic ethers by opening of the heterocyclic ring
C08G65/02 (From cyclic ethers by opening of the heterocyclic ring) appears on 6,428 US grants and 5,690 published applications in this corpus.
Search patents in C08G- Granted patents
- 6,428
- Published applications
- 5,690
- Assignees
- 1,995
- Inventors
- 13,380
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 93 | 0 |
| 1977 | 62 | 0 |
| 1978 | 86 | 0 |
| 1979 | 72 | 0 |
| 1980 | 83 | 0 |
| 1981 | 108 | 0 |
| 1982 | 65 | 0 |
| 1983 | 76 | 0 |
| 1984 | 74 | 0 |
| 1985 | 63 | 0 |
| 1986 | 58 | 0 |
| 1987 | 89 | 0 |
| 1988 | 66 | 0 |
| 1989 | 85 | 0 |
| 1990 | 93 | 0 |
| 1991 | 92 | 0 |
| 1992 | 124 | 0 |
| 1993 | 117 | 0 |
| 1994 | 113 | 0 |
| 1995 | 95 | 0 |
| 1996 | 131 | 0 |
| 1997 | 133 | 0 |
| 1998 | 128 | 0 |
| 1999 | 124 | 0 |
| 2000 | 134 | 0 |
| 2001 | 128 | 48 |
| 2002 | 184 | 160 |
| 2003 | 147 | 205 |
| 2004 | 142 | 208 |
| 2005 | 128 | 214 |
| 2006 | 101 | 150 |
| 2007 | 99 | 142 |
| 2008 | 77 | 192 |
| 2009 | 76 | 184 |
| 2010 | 126 | 252 |
| 2011 | 138 | 202 |
| 2012 | 134 | 210 |
| 2013 | 164 | 216 |
| 2014 | 181 | 218 |
| 2015 | 210 | 256 |
| 2016 | 209 | 243 |
| 2017 | 192 | 257 |
| 2018 | 182 | 245 |
| 2019 | 205 | 267 |
| 2020 | 213 | 301 |
| 2021 | 209 | 281 |
| 2022 | 144 | 322 |
| 2023 | 174 | 298 |
| 2024 | 190 | 250 |
| 2025 | 188 | 197 |
| 2026 | 123 | 172 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process for the reduction of regioisomer where the double bond is shifted from ethylenically unsaturated alkoxylated alcohols6 Oct 2026US 12,753,262 B2Sika Technology AG
- Fluorine-containing ether compound, surface treatment agent, fluorine-containing ether composition, coating liquid, article, and compound6 Oct 2026US 12,753,323 B2AGC Inc.
- Curable fluoropolyether adhesive composition and optical part6 Oct 2026US 12,753,333 B2Shin-Etsu Chemical Co., Ltd.
- Method for producing polyalkylene oxide29 Sep 2026US 12,747,321 B2Sumitomo Seika Chemicals Co., Ltd.
- Dual catalyst system for mass vinyl addition and cationic polymerizable compositions22 Sep 2026US 12,742,041 B2Promerus, LLC
- Fiber material for cement/concrete reinforcement, method for producing fiber material for cement/concrete reinforcement, and fiber-reinforced cement composition8 Oct 2026US 2026/0308058 A1Toyota Jidosha Kabushiki Kaisha
- Fluorine-free ferroelectric polymers8 Oct 2026US 2026/0308319 A1Case Western Reserve University
- Polyamide block copolymer, polyamide block copolymer composition, and molded article8 Oct 2026US 2026/0308332 A1Kuraray Co., Ltd.
- Compound, coating composition and film8 Oct 2026US 2026/0308409 A1Industrial Technology Research Institute
- Biodegradable polyol propoxylates, their preparation, uses, and compositions comprising them8 Oct 2026US 2026/0308484 A1BASF SE
Most cited
By later US patents
- Non-immunogenic polypeptides2,007US 4,179,337 A1979
- Adhesive formulations1,017US 8,349,987 B2Covidien LP · 2013
- Multiarmed, monofunctional, polymer for coupling to molecules and surfaces813US 5,932,462 AShearwater Polymers, Inc. · 1999
- Blood substitute containing modified hemoglobin699US 4,301,144 AAjinomoto Co., Inc. · 1981
- Crosslinked polymer compositions and methods for their use649US 5,874,500 ACohesion Technologies, Inc. · 1999