F24F 13/0263
Insulation for air ducts
Official title: {Insulation for air ducts}
F24F13/0263 (Insulation for air ducts) appears on 258 US grants and 271 published applications in this corpus.
Search patents in F24F- Granted patents
- 258
- Published applications
- 271
- Assignees
- 159
- Inventors
- 524
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 8 | 0 |
| 1999 | 11 | 0 |
| 2000 | 5 | 0 |
| 2001 | 9 | 6 |
| 2002 | 7 | 10 |
| 2003 | 9 | 8 |
| 2004 | 4 | 11 |
| 2005 | 3 | 10 |
| 2006 | 4 | 7 |
| 2007 | 4 | 8 |
| 2008 | 0 | 9 |
| 2009 | 3 | 3 |
| 2010 | 6 | 9 |
| 2011 | 3 | 11 |
| 2012 | 9 | 8 |
| 2013 | 2 | 8 |
| 2014 | 5 | 9 |
| 2015 | 8 | 11 |
| 2016 | 8 | 10 |
| 2017 | 10 | 14 |
| 2018 | 7 | 13 |
| 2019 | 15 | 20 |
| 2020 | 14 | 14 |
| 2021 | 9 | 12 |
| 2022 | 14 | 17 |
| 2023 | 16 | 10 |
| 2024 | 11 | 18 |
| 2025 | 9 | 8 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Self-muffling acoustic duct assembly for noise attenuation in a vehicle and method of using the same18 Aug 2026US 12,710,193 B2The Boeing Company
- Commercial kitchen installation with double wall grease duct16 Jun 2026US 12,656,016 B2Captive-Aire Systems, Inc.
- Moisture and/or thermal resistance monitoring system for insulation-containing conduit and methods of use2 Jun 2026US 12,644,617 B2Royal Metal Products
- Air-mixing plenum and method of mixing flows of air therewith24 Feb 2026US 12,560,340 B2Ingénia Technologies Inc.
- Fire-rated modular duct assembly suitable for exhausting flammable or hazardous gases, vapours and other materials16 Sep 2025US RE50,587 E1Vaughanair Canada Ulc
- Process for forming an insulated register box in which the register box has a improved r-value27 Aug 2026US 2026/0249526 A1Sterling Custom Sheet Metal, Inc.
- Class 1 uninsulated flexible duct constructed of polymer material, helical wire, fire resistant barrier material, and flame resistant yarn and method of use23 Jul 2026US 2026/0208464 A1Royal Metal Products
- CLASS 0 Uninsulated Flexible Duct and Method Of Use9 Jul 2026US 2026/0194255 A1Royal Metal Products
- Outdoor air-to-air heat pump installation with thermally insulated condenser chamber11 Jun 2026US 2026/0160456 A1ZK Varme AS
- Layered structure of a flat, dimensionally stable building panel and a self-supporting air duct made of the layered structure12 Mar 2026US 2026/0070300 A1Saint-Gobain Isover
Most cited
By later US patents
- Sheet-metal insulated register box with adjustable elbow fitting87US 5,957,506 AM & M Manufacturing, Inc. · 1999
- Air duct and method of making same83US 5,918,644 A1999
- Apparatus for reinforcing and firestopping around a duct extending through a structural panel80US 7,797,893 B2Specified Technologies Inc. · 2010
- Apparatus for on-site installation of air duct system78US 6,231,704 B12001
- Plastic self-insulating ductwork system69US 5,219,403 A1993