C08K 5/3442
Having two nitrogen atoms in the ring
Official title: having two nitrogen atoms in the ring
C08K5/3442 (Having two nitrogen atoms in the ring) appears on 1,012 US grants and 1,133 published applications in this corpus.
Search patents in C08K- Granted patents
- 1,012
- Published applications
- 1,133
- Assignees
- 567
- Inventors
- 3,299
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 20 | 0 |
| 1978 | 23 | 0 |
| 1979 | 3 | 0 |
| 1980 | 14 | 0 |
| 1981 | 10 | 0 |
| 1982 | 15 | 0 |
| 1983 | 13 | 0 |
| 1984 | 14 | 0 |
| 1985 | 6 | 0 |
| 1986 | 7 | 0 |
| 1987 | 18 | 0 |
| 1988 | 11 | 0 |
| 1989 | 14 | 0 |
| 1990 | 11 | 0 |
| 1991 | 20 | 0 |
| 1992 | 9 | 0 |
| 1993 | 11 | 0 |
| 1994 | 13 | 0 |
| 1995 | 9 | 0 |
| 1996 | 8 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 12 | 0 |
| 2000 | 13 | 0 |
| 2001 | 8 | 2 |
| 2002 | 6 | 8 |
| 2003 | 13 | 16 |
| 2004 | 10 | 10 |
| 2005 | 4 | 15 |
| 2006 | 8 | 16 |
| 2007 | 3 | 13 |
| 2008 | 2 | 16 |
| 2009 | 7 | 18 |
| 2010 | 16 | 33 |
| 2011 | 16 | 28 |
| 2012 | 11 | 31 |
| 2013 | 26 | 43 |
| 2014 | 27 | 40 |
| 2015 | 33 | 59 |
| 2016 | 37 | 64 |
| 2017 | 44 | 53 |
| 2018 | 44 | 69 |
| 2019 | 51 | 78 |
| 2020 | 54 | 107 |
| 2021 | 59 | 80 |
| 2022 | 49 | 65 |
| 2023 | 53 | 64 |
| 2024 | 57 | 80 |
| 2025 | 40 | 61 |
| 2026 | 26 | 64 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Colored fiber, method for manufacturing colored fiber, and fiber product29 Sep 2026US 12,747,518 B2Kaneka Corporation
- Two-coat single cure powder coating15 Sep 2026US 12,734,549 B2The Sherwin-Williams Company
- Curing agent, adhesive composition for semiconductor comprising same, adhesive film for semiconductor, and semiconductor package using same15 Sep 2026US 12,735,528 B2LG Chem.Ltd.
- Rubber composition based on a highly saturated diene elastomer1 Sep 2026US 12,723,116 B2Compagnie Generale Des Etablissements Michelin
- Downhole tool or member thereof containing polyglycolic acid1 Sep 2026US 12,723,154 B2Kureha Corporation
- Resin composition and electronic component device24 Sep 2026US 2026/0286121 A1Resonac Corporation
- Compositions containing n-substituted piperazines for electronic manufacturing applications24 Sep 2026US 2026/0288011 A1Dow Global Technologies LLC
- Cyclic olefin copolymer and curable composition17 Sep 2026US 2026/0275017 A1CPC Corporation, Taiwan
- Conductive composition17 Sep 2026US 2026/0275026 A1Tatsuta Electric Wire & Cable Co., Ltd.
- Surface smoothing agent for polyurethane coating film, composition, curing agent, polyurethane resin-forming composition, coating composition, and coating film17 Sep 2026US 2026/0275077 A1Tosoh Corporation
Most cited
By later US patents
- Synergistic flame protection agent combination for thermoplastic polymers99US 6,365,071 B1Clariant GmbH · 2002
- Stabilized polyester compositions suitable for outdoor applications98US 4,525,504 AEastman Kodak Company · 1985
- Optical coupling device and process for modulating light66US 5,845,025 AThe Trustees of the University of Pennsylvania · 1998
- Latent light stabilizers65US 5,597,854 ACiba-Geigy Corporation · 1997
- Hydroxylamines derived from hindered amines60US 4,691,015 ACiba-Geigy Corporation · 1987