G01J 5/0018
Flames, plasma or welding
Official title: {Flames, plasma or welding}
G01J5/0018 (Flames, plasma or welding) appears on 148 US grants and 158 published applications in this corpus.
Search patents in G01J- Granted patents
- 148
- Published applications
- 158
- Assignees
- 123
- Inventors
- 446
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 5 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 1 | 1 |
| 2008 | 1 | 2 |
| 2009 | 3 | 7 |
| 2010 | 3 | 6 |
| 2011 | 3 | 1 |
| 2012 | 5 | 8 |
| 2013 | 4 | 2 |
| 2014 | 2 | 2 |
| 2015 | 5 | 7 |
| 2016 | 8 | 9 |
| 2017 | 6 | 12 |
| 2018 | 8 | 11 |
| 2019 | 12 | 9 |
| 2020 | 13 | 13 |
| 2021 | 4 | 11 |
| 2022 | 14 | 12 |
| 2023 | 6 | 6 |
| 2024 | 12 | 15 |
| 2025 | 10 | 9 |
| 2026 | 5 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Broadband camera for flame detection and detection of a thermal image of the scene of the flame25 Aug 2026US 12,720,175 B2LightPath Technologies, Inc.
- Fire detector having unheated thermistors for capturing thermal fluctuations in the region of the inlet openings28 Jul 2026US 12,694,780 B2Siemens Schweiz AG
- Calibrating an infrared (IR) sensor in a fire sensing device12 May 2026US 12,625,000 B2Honeywell International Inc.
- Ultraviolet sensing assembly3 Feb 2026US 12,540,857 B2
- Detection systems with spatial specificity and methods of detecting flame or gas with spatial specificity6 Jan 2026US 12,516,983 B2Carrier Corporation
- False alarm immunity of single spectral sensor using multi-channel frequency segmentation1 Oct 2026US 2026/0298715 A1
- Standoff sensor for industrial flares and wildfires17 Sep 2026US 2026/0276448 A1The George Washington University
- System for detecting an object at least partially hidden by a flame20 Aug 2026US 2026/0243603 A1Consiglio Nazionale Delle Ricerche
- Method and system for inferring electron temperature from hollow cathode plume color18 Jun 2026US 2026/0168856 A1Shanghai Institute of Space Propulsion
- Flame detection system and method thereof16 Apr 2026US 2026/0104292 A1Life Safety Distribution AG
Most cited
By later US patents
- Optoelectronic measuring device for monitoring a combustion chamber127US 5,384,467 AAVL Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik m.b.H. Prof. Dr. Dr. h.c. Hans List · 1995
- Video temperature monitor68US 5,225,883 AThe Babcock & Wilcox Company · 1993
- Flame detector for use with a burner65US 4,709,155 ABabcock-Hitachi Kabushiki Kaisha · 1987
- Apparatus for observing combustion conditions in a gas turbine engine64US 7,484,369 B2Rosemount Aerospace Inc. · 2009
- Gas leakage monitoring method and its system49US 7,385,681 B2Shikoku Research Institute Incorporated · 2008