F01N 13/148
Multiple layers of insulating material
Official title: {Multiple layers of insulating material}
F01N13/148 (Multiple layers of insulating material) appears on 68 US grants and 92 published applications in this corpus.
Search patents in F01N- Granted patents
- 68
- Published applications
- 92
- Assignees
- 56
- Inventors
- 181
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 3 | 2 |
| 2006 | 1 | 1 |
| 2007 | 0 | 3 |
| 2008 | 1 | 3 |
| 2009 | 0 | 4 |
| 2010 | 1 | 5 |
| 2011 | 1 | 5 |
| 2012 | 6 | 8 |
| 2013 | 4 | 6 |
| 2014 | 3 | 5 |
| 2015 | 4 | 4 |
| 2016 | 2 | 5 |
| 2017 | 4 | 5 |
| 2018 | 5 | 4 |
| 2019 | 7 | 9 |
| 2020 | 9 | 4 |
| 2021 | 4 | 3 |
| 2022 | 2 | 7 |
| 2023 | 5 | 3 |
| 2024 | 3 | 3 |
| 2025 | 2 | 0 |
By publication year.
Recent patents
- Multi-layer exhaust insulation systems and methods14 Oct 2025US 12,442,481 B2Lincoln Industries, Inc.
- Composite type heat insulator and method for producing the same19 Aug 2025US 12,392,445 B2Imae Industry Co., Ltd.
- Inorganic fiber-formed article, mat for exhaust gas cleaning apparatus, and exhaust gas cleaning apparatus17 Dec 2024US 12,168,841 B2Maftec Co., Ltd.
- Inorganic fiber-formed article, mat for exhaust gas cleaning apparatus, and exhaust gas cleaning apparatus8 Oct 2024US 12,110,622 B2Maftec Co., Ltd.
- Insulated exhaust gas conduit systems18 Jun 2024US 12,013,075 B2Cummins Emission Solutions Inc.
- A thermal insulating member for a vehicle component11 Jul 2024US 2024/0227355 A1Volvo Truck Corporation
- Coating materials for high temperature surfaces6 Jun 2024US 2024/0181765 A1
- Shielding part, in particular heat shield4 Apr 2024US 2024/0110501 A1ElringKlinger AG
- Tubular member for exhaust gas treatment device and method of manufacturing tubular member for exhaust gas treatment device14 Sep 2023US 2023/0287821 A1NGK Insulators, Ltd.
- Insulated exhaust gas conduit systems12 Jan 2023US 2023/0009619 A1Cummins Emission Solutions Inc.
Most cited
By later US patents
- Engine exhaust catalysts containing palladium-gold53US 8,258,070 B2WGCH Technology Limited · 2012
- Acoustical heat shield21US 6,966,402 B2Dana Corporation · 2005
- Engine muffler and method of manufacturing the same15US 6,857,502 B2Sankei Kigen Kogyo Kabushiki Kaisya · 2005
- Heat shield14US 7,152,633 B2Thermo-Tec · 2006
- Knit sleeve with knit barrier extension having a barrier therein and method of construction13US 8,505,339 B2Federal-Mogul Powertrain LLC · 2013