H02G 3/0412
Heat or fire protective means
Official title: {Heat or fire protective means (for fire in electric circuits A62C3/16)}
H02G3/0412 (Heat or fire protective means) appears on 227 US grants and 269 published applications in this corpus.
Search patents in H02G- Granted patents
- 227
- Published applications
- 269
- Assignees
- 136
- Inventors
- 425
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 3 |
| 2003 | 1 | 3 |
| 2004 | 4 | 7 |
| 2005 | 1 | 5 |
| 2006 | 3 | 6 |
| 2007 | 2 | 7 |
| 2008 | 3 | 7 |
| 2009 | 5 | 7 |
| 2010 | 3 | 5 |
| 2011 | 2 | 7 |
| 2012 | 6 | 6 |
| 2013 | 3 | 12 |
| 2014 | 11 | 10 |
| 2015 | 9 | 17 |
| 2016 | 13 | 8 |
| 2017 | 7 | 18 |
| 2018 | 11 | 22 |
| 2019 | 21 | 19 |
| 2020 | 18 | 19 |
| 2021 | 15 | 14 |
| 2022 | 15 | 11 |
| 2023 | 14 | 14 |
| 2024 | 8 | 12 |
| 2025 | 11 | 16 |
| 2026 | 4 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Transit device for leading one or more cables and/or pipes through an opening in a partition1 Sep 2026US 12,723,681 B2Roxtec AB
- Flexible, arc resistant, fluid repellant, high temperature and abrasion resistant, circumferentially continuous, seamless textile sleeve and method of construction thereof12 May 2026US 12,627,125 B2Systems Protection Group US LLC
- Fire-rate poke-thru assembly for quad receptacle14 Apr 2026US 12,603,486 B1Aarlington Industries, Inc.
- Fire and explosion proof structure for high-voltage cable joint and manufacturing method therefor17 Mar 2026US 12,580,377 B2Guangdong Annuo New Material Technology Co., Ltd.
- Wire harness16 Dec 2025US 12,500,400 B2Autonetworks Technologies, Ltd.
- Cable tray fire protection8 Oct 2026US 2026/0312381 A1Øglænd System AS
- Ignition Suppression Circuiting Technology8 Oct 2026US 2026/0312382 A1Isct LLC
- Ignition Suppression Circuiting Technology8 Oct 2026US 2026/0312383 A1Isct LLC
- Ignition Suppression Circuiting Technology8 Oct 2026US 2026/0312384 A1Isct LLC
- Ignition Suppression Circuiting Technology8 Oct 2026US 2026/0312385 A1Isct LLC
Most cited
By later US patents
- System to prevent spread of fire and smoke through wall-breaching utility holes196US 5,456,050 AConstruction Consultants & Contractors, Inc. · 1995
- Intumescent firestopping apparatus110US 6,732,481 B2Specified Technologies Inc. · 2004
- Fire proof cable tray enclosure88US 4,276,332 A1981
- Flexible fibrous endothermic sheet material for fire protection70US 4,600,634 AMinnesota Mining and Manufacturing Company · 1986
- Cable tray protection system65US 4,433,732 AMinnesota Mining and Manufacturing Company · 1984