H01H 51/2254
Contact forms part of armature
Official title: {Contact forms part of armature}
H01H51/2254 (Contact forms part of armature) appears on 23 US grants and 1 published applications in this corpus.
Search patents in H01H- Granted patents
- 23
- Published applications
- 1
- Assignees
- 7
- Inventors
- 22
- Latest grant
- 30 Aug 2005
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electro-magnetically operable device30 Aug 2005US 6,935,373 B2Camcon Ltd.
- Enclosed electromagnetic relay17 Sep 1991US 5,049,844 ABeta Mfg. Co.
- Polarized armature contact relay16 Apr 1991US 5,008,641 ASiemens Aktiengesellschaft
- Polarized electromagnetic multi-contact relay21 Aug 1990US 4,951,016 ASiemens Aktiengesellschaft
- Enclosed electromagnetic relay29 Nov 1988US 4,788,516 ABeta Mfg. Co.
Most cited
By later US patents
- Reed relay24US 4,091,346 AMatsushita Electric Works, Ltd. · 1978
- Electromagnetic switching device15US 3,987,383 AMatsushita Electric Works, Ltd. · 1976
- Externally adjustable electromagnetic relay10US 4,182,998 ASiemens Aktiengesellschaft · 1980
- Polarized electromagnetic miniature relay10US 4,215,329 ASiemens Aktiengesellschaft · 1980
- Polarized reed relay9US 4,311,976 AMatsushita Electric Works, Ltd. · 1982