F21H 1/02
Incandescent mantles: characterised by the material thereof
Official title: characterised by the material thereof
F21H1/02 (Incandescent mantles: characterised by the material thereof) appears on 17 US grants and 0 published applications in this corpus.
Search patents in F21H- Granted patents
- 17
- Published applications
- 0
- Assignees
- 6
- Inventors
- 18
- Latest grant
- 23 Jan 2001
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Combination flashlight an electrical power source assembly and emitter and reflector therefor23 Jan 2001US 6,176,596 B1Thermo Power Corporation
- Portable, small, light-weight radiant and/or electrical power generating sources25 Jul 2000US 6,092,912 AThe Quantum Group, Inc.
- Procedure for preparing a incandescent material and its use in hard mantles for gas lighting of public places18 May 1999US 5,904,881 ACommissariat A L' Energie Atomique
- Process for producing a sturdy refractory metal oxide article31 Aug 1993US 5,240,407 ATPV Energy Systems, Inc.
- Incandescent mantles23 Jun 1992US 5,124,286 A
No published applications in this class yet.
Most cited
By later US patents
- Portable, small, light-weight radiant and/or electrical power generating sources35US 6,092,912 AThe Quantum Group, Inc. · 2000
- Thermophotovoltaic technology34US 4,584,426 AThe Gillette Company · 1986
- Thermophotovoltaic technology30US 4,976,606 ATPV Energy Systems, Inc. · 1990
- Thermophotovoltaic technology21US 5,057,162 ATPV Energy Systems, Inc. · 1991
- Combination flashlight an electrical power source assembly and emitter and reflector therefor15US 6,176,596 B1Thermo Power Corporation · 2001