C08K 5/378
Containing heterocyclic rings
Official title: containing heterocyclic rings
C08K5/378 (Containing heterocyclic rings) appears on 233 US grants and 213 published applications in this corpus.
Search patents in C08K- Granted patents
- 233
- Published applications
- 213
- Assignees
- 163
- Inventors
- 701
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 8 | 0 |
| 1985 | 9 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 12 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 6 | 1 |
| 2002 | 5 | 2 |
| 2003 | 3 | 4 |
| 2004 | 1 | 6 |
| 2005 | 4 | 2 |
| 2006 | 2 | 9 |
| 2007 | 2 | 5 |
| 2008 | 1 | 6 |
| 2009 | 5 | 3 |
| 2010 | 5 | 6 |
| 2011 | 3 | 3 |
| 2012 | 0 | 6 |
| 2013 | 5 | 9 |
| 2014 | 5 | 10 |
| 2015 | 6 | 8 |
| 2016 | 2 | 12 |
| 2017 | 9 | 8 |
| 2018 | 7 | 18 |
| 2019 | 9 | 13 |
| 2020 | 5 | 10 |
| 2021 | 10 | 9 |
| 2022 | 3 | 17 |
| 2023 | 9 | 15 |
| 2024 | 8 | 10 |
| 2025 | 9 | 9 |
| 2026 | 7 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Curable composition, cured body, laminate, lens, and spectacles30 Jul 2026US 2026/0217891 A1Tokuyama Corporation
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- Resin composition and heat dissipation member16 Jul 2026US 2026/0201148 A1Sekisui Chemical Co., Ltd.
Most cited
By later US patents
- Piperidyl-triazine derivatives as stabilizers for synthetic polymers75US 4,108,829 AChimosa Chimica Organica S.p.A. · 1978
- 3-(2-acyloxyethoxyphenyl)benzofuran-2-ones for use as stabilizers54US 5,428,162 ACiba-Geigy Corporation · 1995
- Polyphenylene ether resin composition having improved heat stability and impact strength46US 4,341,879 AMitsubishi Gas Chemical Company, Inc. · 1982
- Corrosion resistant silver and copper surfaces46US 4,873,139 AMinnesota Mining and Manufacturing Company · 1989
- Polyolefin compositions of high clarity and resistance to oxidation45US 4,845,137 ABecton, Dickinson and Company · 1989