C08K 5/353
Five-membered rings
C08K5/353 (Five-membered rings) appears on 168 US grants and 189 published applications in this corpus.
Search patents in C08K- Granted patents
- 168
- Published applications
- 189
- Assignees
- 157
- Inventors
- 551
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 7 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 9 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 7 |
| 2003 | 3 | 8 |
| 2004 | 5 | 2 |
| 2005 | 4 | 9 |
| 2006 | 1 | 11 |
| 2007 | 4 | 1 |
| 2008 | 2 | 8 |
| 2009 | 1 | 3 |
| 2010 | 5 | 4 |
| 2011 | 2 | 6 |
| 2012 | 2 | 6 |
| 2013 | 3 | 5 |
| 2014 | 3 | 5 |
| 2015 | 1 | 6 |
| 2016 | 5 | 13 |
| 2017 | 7 | 6 |
| 2018 | 4 | 9 |
| 2019 | 6 | 12 |
| 2020 | 9 | 14 |
| 2021 | 9 | 11 |
| 2022 | 6 | 13 |
| 2023 | 9 | 13 |
| 2024 | 5 | 4 |
| 2025 | 7 | 6 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polyurethane-reactive system for pultrusion15 Sep 2026US 12,735,526 B2Covestro Deutschland AG
- Stabilizer composition for silyl-modified polymer sealants25 Aug 2026US 12,715,980 B2Clariant International Ltd.
- Transmembrane pH-gradient polymersomes20 Jan 2026US 12,528,916 B2ETH Zurich
- Wavelength selective absorption filter and organic electroluminescent display device25 Nov 2025US 12,479,989 B2FUJIFILM Corporation
- Regenerated alloy material based on chemical and physical co-modification and method for preparing same29 Jul 2025US 12,371,560 B2China National Electric Apparatus Research Institute Co., Ltd.
- Composition and molded body20 Aug 2026US 2026/0242583 A1Newlight Technologies, LLC
- Stabilizer composition for silyl-modified polymer sealants6 Aug 2026US 2026/0226257 A1Clariant International Ltd.
- Rubber compositions comprising antidegradants23 Jul 2026US 2026/0209483 A1Flexsys America L. P.
- White, heat shrink film and a process of its manufacturing9 Jul 2026US 2026/0193430 A1Garware Hi-Tech Films Limited
- Antibacterial plastic masterbatch and its application in antibacterial plastic products18 Jun 2026US 2026/0167820 A1Anhui Kangran Creates Oxygen Biotechnology Co., Ltd
Most cited
By later US patents
- Water-absorbing agent and process for producing the same146US 6,809,158 B2Nippon Shokubai Co., Ltd. · 2004
- Latent catalysts59US 5,187,019 AKing Industries, Inc. · 1993
- Flame-retardant polycarbonate compositions42US 5,837,757 AIdemitsu Petrochemical Co., Ltd. · 1998
- Biodegradable polymers, process for the preparation thereof and the use thereof for producing biodegradable moldings42US 5,880,220 ABASF SE · 1999
- Stabilizer mixtures41US 6,828,364 B2Ciba Specialty Chemicals Corporation · 2004