H01C 3/04
Iron-filament ballast resistors
Official title: Iron-filament ballast resistors; Other resistors having variable temperature coefficient
H01C3/04 (Iron-filament ballast resistors) appears on 14 US grants and 9 published applications in this corpus.
Search patents in H01C- Granted patents
- 14
- Published applications
- 9
- Assignees
- 12
- Inventors
- 28
- Latest grant
- 11 Jul 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 4 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 2 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods and control systems of resistance adjustment of resistors11 Jul 2017US 9,703,301 B1International Business Machines Corporation
- Methods and control systems of resistance adjustment of resistors26 Jul 2016US 9,400,511 B1International Business Machines Corporation
- Stable high temperature heater with serpentine heating strands on insulative substrate29 May 2007US 7,224,256 B2Heetronix
- Stable high temperature sensor system with tungsten on AlN12 Sep 2006US 7,106,167 B2Heetronix
- Fe-Cr-Al alloys for electric resistance wires28 Feb 2006US 7,005,105 B2Korea Electrotechnology Research Institute
- Methods and control systems of resistance adjustment of resistors13 Jul 2017US 2017/0199532 A1International Business Machines Corporation
- Stable high temperature heater system with tungsten heating layer30 Nov 2006US 2006/0267724 A1Heetronix
- Stable high temperature with serpentine heating strands on insulative substrate20 Apr 2006US 2006/0082433 A1Heetronix
- Stable high temperature sensor system with tungsten on AlN25 Mar 2004US 2004/0056321 A1Heetronix
- Fr-Cr-Al alloys for electric resistance wires5 Sep 2002US 2002/0122739 A1Korea Electrotechnology Research Institute
Most cited
By later US patents
- Shielding unique for filtering RFI and EFI interference signals from the measuring elements54US 5,999,081 AMarchi Associates, Inc. · 1999
- Temperature-measuring-resistor, manufacturing method therefor, ray detecting element using the same20US 5,805,049 AMitsubishi Denki Kabushiki Kaisha · 1998
- Stable high temperature heater with serpentine heating strands on insulative substrate9US 7,224,256 B2Heetronix · 2007
- Thin-film resistor, wiring substrate, and method for manufacturing the same8US 6,331,811 B2NEC Corporation · 2001
- High-temperature detector and method of producing the same8US 6,686,828 B22004