H01H 2219/053
Protected by inert gas
Official title: protected by inert gas
H01H2219/053 (Protected by inert gas) appears on 4 US grants and 0 published applications in this corpus.
Search patents in H01H- Granted patents
- 4
- Published applications
- 0
- Assignees
- 3
- Inventors
- 9
- Latest grant
- 12 Oct 2004
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Integration of organic light-emitting components into the keyboard of an electronic device12 Oct 2004US 6,803,903 B1Nokia Mobile Phones Ltd.
- Arrangement for integration of key illumination into keymat of portable electronic devices9 Mar 2004US 6,704,004 B1Nokia Mobile Phones Ltd.
- Multi-color light emission apparatus with organic electroluminescent device1 Jun 1999US 5,909,081 AIdemitsu Kosan Co., Ltd.
- Methods for sealing electrochromic devices and devices manufactured thereby3 Aug 1993US 5,233,461 ADonnelly Corporation
No published applications in this class yet.
Most cited
By later US patents
- Methods for sealing electrochromic devices and devices manufactured thereby376US 5,233,461 ADonnelly Corporation · 1993
- Multi-color light emission apparatus with organic electroluminescent device202US 5,909,081 AIdemitsu Kosan Co., Ltd. · 1999
- Arrangement for integration of key illumination into keymat of portable electronic devices44US 6,704,004 B1Nokia Mobile Phones Ltd. · 2004
- Integration of organic light-emitting components into the keyboard of an electronic device25US 6,803,903 B1Nokia Mobile Phones Ltd. · 2004