F24F 2221/30
Comprising fireproof material
Official title: comprising fireproof material
F24F2221/30 (Comprising fireproof material) appears on 33 US grants and 50 published applications in this corpus.
Search patents in F24F- Granted patents
- 33
- Published applications
- 50
- Assignees
- 28
- Inventors
- 63
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 3 |
| 2013 | 0 | 3 |
| 2014 | 0 | 0 |
| 2015 | 5 | 3 |
| 2016 | 1 | 4 |
| 2017 | 3 | 3 |
| 2018 | 3 | 1 |
| 2019 | 3 | 4 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 3 | 1 |
| 2023 | 1 | 3 |
| 2024 | 1 | 4 |
| 2025 | 1 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fire resistant multi-guard louver vent (MGV)24 Feb 2026US 12,560,351 B2
- Fire resistant ventilation duct and a method of manufacturing and installing such ventilation duct11 Mar 2025US 12,247,689 B2Rockwool A/S
- Fire-rated ventilation duct and improvements therein26 Nov 2024US 12,152,802 B2Vaughanair Canada Ulc
- Ember-resistant and flame-resistant roof ventilation system26 Dec 2023US 11,850,457 B2O'Daniels, LLC.
- Ember-resistant and flame-resistant roof ventilation system12 Jul 2022US 11,383,111 B2
- Indoor unit of air conditioner26 Mar 2026US 2026/0085855 A1Fujitsu General Limited
- Air conditioning unit18 Sep 2025US 2025/0290676 A1Daikin Industries, Ltd.
- Fire-rated ventilation duct and a method of manufacturing and/or installing such ventilation duct in a fire-rated ventilation duct structure penetration arrangement12 Jun 2025US 2025/0189164 A1Rockwool A/S
- Fire-rated ventilation duct and improvements therein13 Feb 2025US 2025/0052445 A1Vaughanair Canada Ulc
- Air conditioning unit and packaging unit9 Jan 2025US 2025/0012477 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Apparatus for a fire-rated duct41US 7,195,290 B22007
- Shelter38US 8,939,524 B22015
- Gable vent that blocks fire, rain and water36US 9,822,532 B22017
- Coating composition of flame retardant filler, latex binder and water soluble fire retardant borate25US 3,945,962 AOwens-Corning Fiberglas Corporation · 1976
- Equipment and duct liner insulation and method24US 6,797,653 B2Johns Manville International, Inc. · 2004