C09K 21/02
Inorganic materials
C09K21/02 (Inorganic materials) appears on 718 US grants and 787 published applications in this corpus.
Search patents in C09K- Granted patents
- 718
- Published applications
- 787
- Assignees
- 526
- Inventors
- 1,872
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 4 | 0 |
| 1978 | 10 | 0 |
| 1979 | 13 | 0 |
| 1980 | 8 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 9 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 9 | 0 |
| 1990 | 7 | 0 |
| 1991 | 18 | 0 |
| 1992 | 10 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 3 | 0 |
| 1998 | 12 | 0 |
| 1999 | 18 | 0 |
| 2000 | 20 | 0 |
| 2001 | 13 | 5 |
| 2002 | 7 | 13 |
| 2003 | 18 | 16 |
| 2004 | 10 | 20 |
| 2005 | 8 | 15 |
| 2006 | 14 | 17 |
| 2007 | 3 | 28 |
| 2008 | 11 | 23 |
| 2009 | 10 | 24 |
| 2010 | 12 | 30 |
| 2011 | 17 | 34 |
| 2012 | 11 | 24 |
| 2013 | 11 | 18 |
| 2014 | 15 | 32 |
| 2015 | 18 | 44 |
| 2016 | 22 | 34 |
| 2017 | 19 | 51 |
| 2018 | 20 | 29 |
| 2019 | 43 | 56 |
| 2020 | 33 | 37 |
| 2021 | 32 | 42 |
| 2022 | 24 | 63 |
| 2023 | 38 | 43 |
| 2024 | 39 | 36 |
| 2025 | 26 | 41 |
| 2026 | 19 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fire-retardant-treated wood composite panels for exterior applications or weather exposure during constructions1 Sep 2026US 12,723,401 B2Louisiana-Pacific Corp.
- High-heat and high-shear-resistant high-flame-retardant halogen-free flame-retardant compound system and use30 Jun 2026US 12,668,683 B2Jiangsu Liside New Material Co., Ltd.
- Fire protection system30 Jun 2026US 12,668,745 B2
- Flame retardant composition9 Jun 2026US 12,649,856 B2Borealis AG
- Long-term fire retardant with magnesium sulfate and corrosion inhibitors and methods for making and using same19 May 2026US 12,629,555 B2Perimeter Solutions LP
- Storage stable liquid fugitive colored fire-retardant concentrates1 Oct 2026US 2026/0297428 A1Perimeter Solutions LP
- Fire retardant compositions containing one or more surfactants13 Aug 2026US 2026/0233045 A1Perimeter Solutions LP
- Polyketone resin composition with superior fire resistance and thermal runaway prevention performance2 Jul 2026US 2026/0184896 A1Desco Co., Ltd.
- Flame-retardant composition and related methods18 Jun 2026US 2026/0167832 A1Celestial Materials LLC
- Flame retardant composition4 Jun 2026US 2026/0152647 A1Borealis AG
Most cited
By later US patents
- Fire retardant compositions and methods for preserving wood products255US 6,620,349 B12003
- Gel formers having reduced gelling time and forming gels with improved melting resistance125US 5,709,821 ABayer Aktiengesellschaft · 1998
- Fire protected foamed polymeric materials92US 4,871,477 AFirestop Chemical Corporation · 1989
- Fire-resistant mineral fibers, structures employing such mineral fibers and processes for forming same78US 5,284,700 AOwens-Corning Fiberglas Corporation · 1994
- Two-component on-site foam system and its use for foaming openings for the purpose of fire protection74US 6,706,774 B2Hilti Aktiengesellschaft · 2004