C08G 18/4205
Containing cyclic groups
Official title: {containing cyclic groups}
C08G18/4205 (Containing cyclic groups) appears on 1,082 US grants and 1,325 published applications in this corpus.
Search patents in C08G- Granted patents
- 1,082
- Published applications
- 1,325
- Assignees
- 477
- Inventors
- 3,289
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 7 | 0 |
| 1980 | 13 | 0 |
| 1981 | 13 | 0 |
| 1982 | 7 | 0 |
| 1983 | 19 | 0 |
| 1984 | 26 | 0 |
| 1985 | 18 | 0 |
| 1986 | 13 | 0 |
| 1987 | 18 | 0 |
| 1988 | 11 | 0 |
| 1989 | 16 | 0 |
| 1990 | 8 | 0 |
| 1991 | 11 | 0 |
| 1992 | 11 | 0 |
| 1993 | 7 | 0 |
| 1994 | 11 | 0 |
| 1995 | 9 | 0 |
| 1996 | 7 | 0 |
| 1997 | 11 | 0 |
| 1998 | 18 | 0 |
| 1999 | 13 | 0 |
| 2000 | 22 | 0 |
| 2001 | 21 | 2 |
| 2002 | 23 | 31 |
| 2003 | 26 | 31 |
| 2004 | 13 | 35 |
| 2005 | 7 | 21 |
| 2006 | 14 | 24 |
| 2007 | 5 | 32 |
| 2008 | 5 | 21 |
| 2009 | 11 | 18 |
| 2010 | 12 | 40 |
| 2011 | 16 | 47 |
| 2012 | 16 | 51 |
| 2013 | 28 | 46 |
| 2014 | 24 | 35 |
| 2015 | 48 | 58 |
| 2016 | 33 | 50 |
| 2017 | 41 | 61 |
| 2018 | 39 | 65 |
| 2019 | 39 | 83 |
| 2020 | 44 | 75 |
| 2021 | 55 | 100 |
| 2022 | 47 | 123 |
| 2023 | 55 | 79 |
| 2024 | 70 | 84 |
| 2025 | 53 | 64 |
| 2026 | 30 | 49 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polyol premixes, thermally insulating rigid polyurethane foams and methods for their production22 Sep 2026US 12,742,034 B2Covestro LLC
- Aqueous self-crosslinkable polyurethane dispersions22 Sep 2026US 12,742,035 B2BASF SE
- Flexible food packaging laminates18 Aug 2026US 12,709,702 B2Sun Chemical Corporation
- Degradable bio-based polymers11 Aug 2026US 12,703,768 B2Algenesis Corporation
- Moisture-curable polyurethane hot melt adhesive composition with oleic chemical resistance4 Aug 2026US 12,698,429 B2Henkel AG & Co. KGaA
- Isocyanate-reactive compositions, rigid polyurethane foams and methods for their production24 Sep 2026US 2026/0286035 A1Covestro LLC
- Production of flame-retardent polyurethane foam10 Sep 2026US 2026/0265440 A1Evonik Operations GmbH
- Modified bio-based waterborne polyurethane, method for preparing same, and use thereof27 Aug 2026US 2026/0250452 A1Mojia (Shanghai) Biotech Co., Ltd
- Polyurethane-polyurea aqueous dispersion, and preparation method therefor and use thereof27 Aug 2026US 2026/0250455 A1Wanhua Chemical Group Co., Ltd.
- Optical film, optical effect film, easily adhesive film, optical multilayer body, surface plate, image display device, and polarizing plate27 Aug 2026US 2026/0251821 A1Dai Nippon Printing Co.Ltd.
Most cited
By later US patents
- Membranes of polyurethane based materials including polyester polyols423US 6,013,340 ANIKE, Inc. · 2000
- Membranes of polyurethane based materials including polyester polyols364US 6,321,465 B1NIKE, Inc. · 2001
- Barrier members including a barrier layer employing polyester polyols295US 6,203,868 B1NIKE, Inc. · 2001
- Polyurethane foam sealing material and process for producing the same152US 4,264,743 ANHK Spring Co., Ltd. · 1981
- Foams having shape memory66US 6,583,194 B22003