C08K 5/5477
Containing nitrogen in a heterocyclic ring
Official title: {containing nitrogen in a heterocyclic ring}
C08K5/5477 (Containing nitrogen in a heterocyclic ring) appears on 180 US grants and 146 published applications in this corpus.
Search patents in C08K- Granted patents
- 180
- Published applications
- 146
- Assignees
- 103
- Inventors
- 500
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 9 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 9 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 2 |
| 2003 | 1 | 6 |
| 2004 | 3 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 3 |
| 2007 | 1 | 2 |
| 2008 | 1 | 3 |
| 2009 | 2 | 4 |
| 2010 | 3 | 3 |
| 2011 | 0 | 2 |
| 2012 | 1 | 4 |
| 2013 | 4 | 8 |
| 2014 | 3 | 7 |
| 2015 | 2 | 9 |
| 2016 | 8 | 11 |
| 2017 | 11 | 14 |
| 2018 | 9 | 9 |
| 2019 | 11 | 9 |
| 2020 | 10 | 8 |
| 2021 | 8 | 11 |
| 2022 | 3 | 5 |
| 2023 | 4 | 7 |
| 2024 | 6 | 3 |
| 2025 | 3 | 9 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Enhancing the hydrophilicity of silicone polymers412US 5,397,848 AAllergan, Inc. · 1995
- Low consistency, one-part silicone elastomers106US 4,614,760 ADow Corning Corporation · 1986
- Silane coupling agents polyimide-mineral oxide composites52US 4,778,727 AMassachusetts Institute of Technology · 1988
- Embrittlement-resistant polyolefin composition and flexible articles therefrom51US 5,929,147 AMontell North America Inc. · 1999
- Ultraviolet light absorbing compounds and silicone compositions46US 5,164,462 AAllergan, Inc. · 1992