H01K 1/22
Lamp stems
Official title: Lamp stems (seals for leading conductors there through H01K1/38)
H01K1/22 (Lamp stems) appears on 6 US grants and 6 published applications in this corpus.
Search patents in H01K- Granted patents
- 6
- Published applications
- 6
- Assignees
- 5
- Inventors
- 22
- Latest grant
- 27 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Light bulb27 May 2025US 12,315,715 B1
- Filament support and lamp22 Aug 2023US 11,735,410 B1
- Vibration resistant automotive front lighting lamp20 Feb 2018US 9,899,207 B2Koninklijke Philips N. V.
- Spacer bead geometry for controlled sealing stability8 Jan 2008US 7,317,284 B2
- Electric incandescent lamp with sintered body glass plate31 Oct 2000US 6,140,769 AU. S. Philips Corporation
- Vibration resistant automotive front lighting lamp28 Jul 2016US 2016/0217996 A1Koninklijke Philips N. V.
- Electric lamp having an outer bulb, a stem and an integrated lamp7 Oct 2010US 2010/0253205 A1Osram Gesellschaft Mit Beschraenkter Haftung
- Method for Manufacturing an Electric Bulb8 Oct 2009US 2009/0253334 A1Harison Toshiba Lighting Corp.
- Spacer bead geometry for controlled sealing stability17 Aug 2006US 2006/0181215 A1
- Electric bulb and a method for manufacturing thereof8 Sep 2005US 2005/0194879 A1Harison Toshiba Lighting Corp.
Most cited
By later US patents