C09K 21/10
Containing nitrogen
Official title: containing nitrogen
C09K21/10 (Containing nitrogen) appears on 139 US grants and 162 published applications in this corpus.
Search patents in C09K- Granted patents
- 139
- Published applications
- 162
- Assignees
- 119
- Inventors
- 398
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 7 | 3 |
| 2003 | 2 | 5 |
| 2004 | 1 | 4 |
| 2005 | 0 | 6 |
| 2006 | 4 | 3 |
| 2007 | 0 | 2 |
| 2008 | 1 | 3 |
| 2009 | 2 | 6 |
| 2010 | 1 | 2 |
| 2011 | 2 | 3 |
| 2012 | 4 | 5 |
| 2013 | 2 | 4 |
| 2014 | 3 | 5 |
| 2015 | 5 | 7 |
| 2016 | 5 | 12 |
| 2017 | 1 | 11 |
| 2018 | 8 | 12 |
| 2019 | 8 | 10 |
| 2020 | 10 | 16 |
| 2021 | 9 | 9 |
| 2022 | 11 | 15 |
| 2023 | 15 | 10 |
| 2024 | 8 | 4 |
| 2025 | 4 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for preparing coated MOFs by self-assembly of intumescent flame retardant26 May 2026US 12,637,620 B2China Academy of Safety Science and Technology
- Modified timber21 Oct 2025US 12,447,645 B2Archroma IP GmbH
- Thermally insulating and fire retardant material and method for making same30 Sep 2025US 12,428,563 B2Zeroignition Technologies Inc.
- Fire-retardant oriented strand board29 Apr 2025US 12,286,579 B2Arxada AG
- Formaldehyde-free cyclic urea reactive additives for exotherm suppressant compositions11 Feb 2025US 12,221,525 B1Johns Manville
- Fire retardant compositions containing one or more surfactants13 Aug 2026US 2026/0233045 A1Perimeter Solutions LP
- Firefighting foam composition2 Jul 2026US 2026/0183593 A1Stepan Company
- High-efficacy flame retardant formulations for polyamide and the method of producing them24 Jul 2025US 2025/0236731 A1Agency for Science, Technology and Research
- Flame retarding composition, flame-retardant resin composition, and molded article13 Feb 2025US 2025/0051548 A1Adeka Corporation
- Fire-retardant compositions and insulation materials and method of making6 Feb 2025US 2025/0043186 A1Applegate Greenfiber Acquisition, LLC
Most cited
By later US patents
- Intumescent coating materials79US 4,144,385 ABritish Industrial Plastics Limited · 1979
- Use of thermally expandable graphite intercalation compounds for producing fire-protection seals and method for their production64US 7,479,513 B2Hilti Aktiengesellschaft · 2009
- Urea and borates for fire and termite control62US 6,423,251 B12002
- Fire retardant with mold inhibitor62US 6,982,049 B1No-Burn Investments, L.L.C. · 2006
- Fire retarding composition and a method for impregnation of a combustible material58US 6,042,639 AFireguard Scandinavia AS · 2000