H01K 9/00
Lamps having two or more incandescent bodies separately heated
Official title: Lamps having two or more incandescent bodies separately heated (H01K11/00, H01K13/00 take precedence)
H01K9/00 (Lamps having two or more incandescent bodies separately heated) appears on 130 US grants and 69 published applications in this corpus.
Search patents in H01K- Granted patents
- 130
- Published applications
- 69
- Assignees
- 54
- Inventors
- 226
- Latest grant
- 7 Jan 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 8 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 7 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 7 |
| 2003 | 6 | 6 |
| 2004 | 4 | 6 |
| 2005 | 8 | 5 |
| 2006 | 2 | 4 |
| 2007 | 3 | 4 |
| 2008 | 3 | 8 |
| 2009 | 1 | 8 |
| 2010 | 6 | 11 |
| 2011 | 5 | 0 |
| 2012 | 8 | 0 |
| 2013 | 2 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 5 |
| 2017 | 2 | 0 |
| 2018 | 3 | 1 |
| 2019 | 2 | 3 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Efficient white lamp for vehicle headlight7 Jan 2020US 10,527,247 B2Lumileds Holding B. V.
- Vehicle headlight with two filaments and mounting of such a lamp within a reflector15 Oct 2019US 10,443,804 B2Lumileds LLC
- Low-pressure ultraviolet radiator with multiple filaments25 Jun 2019US 10,332,738 B2Xylem IP Management S.à R.L.
- Double-filament incandescent lamp for automotive vehicle front lighting8 May 2018US 9,966,246 B2Koninklijke Philips N. V.
- Vibration resistant automotive front lighting lamp20 Feb 2018US 9,899,207 B2Koninklijke Philips N. V.
- Efficient white lamp for vehicle headlight17 Oct 2019US 2019/0316750 A1Lumileds Holding B. V.
- Vehicle headlight with two filaments and mounting of such a lamp within a reflector2 May 2019US 2019/0128493 A1Lumileds LLC
- Low-pressure ultraviolet radiator with multiple filaments28 Feb 2019US 2019/0066996 A1Xylem IP Management S.à R.L.
- Dimming cap for a lamp with two separate radiation sources28 Jun 2018US 2018/0180237 A1Lumileds Holding B. V.
- Vibration resistant automotive front lighting lamp4 Aug 2016US 2016/0225605 A1Koninklijke Philips N. V.
Most cited
By later US patents
- Lamp bulb with stretchable lamp beads therein155US 6,523,978 B1Shining Blick Enterprises Co., Ltd. · 2003
- Electric lamp device and lighting apparatus67US 6,234,649 B1Moriyama Sangyo Kabushiki Kaisha · 2001
- Flat panel television/display63US 4,563,617 A1986
- Electric lamp with insulating base27US 4,603,278 AGTE Products Corporation · 1986
- Structure of decorating light string's light bulb24US 5,800,047 A1998