H01J 61/50
Auxiliary parts or solid material within the envelope for reducing risk of
Official title: Auxiliary parts or solid material within the envelope for reducing risk of explosion upon breakage of the envelope, e.g. for use in mines
H01J61/50 (Auxiliary parts or solid material within the envelope for reducing risk of) appears on 90 US grants and 58 published applications in this corpus.
Search patents in H01J- Granted patents
- 90
- Published applications
- 58
- Assignees
- 43
- Inventors
- 190
- Latest grant
- 8 Dec 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 4 |
| 2003 | 2 | 1 |
| 2004 | 6 | 6 |
| 2005 | 2 | 2 |
| 2006 | 1 | 7 |
| 2007 | 3 | 8 |
| 2008 | 7 | 5 |
| 2009 | 4 | 4 |
| 2010 | 5 | 5 |
| 2011 | 1 | 4 |
| 2012 | 4 | 3 |
| 2013 | 3 | 2 |
| 2014 | 2 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Protective pipe for a UV tube, in particular a UV-C tube8 Dec 2020US 10,857,254 B2sterilAir AG
- Metal halide lamp and manufacturing method thereof8 Dec 2020US 10,861,691 B2Junwa Lighting Technology Corporation
- Damping ring30 Jul 2019US 10,366,875 B2Xylem IP Management S.à R.L.
- Thermally isolated high intensity light source30 Oct 2018US 10,113,343 B2Surna Inc.
- Projection apparatus and light source module having fixing wire18 Oct 2016US 9,470,961 B2Coretronic Corporation
- Sterilizing lamp3 Feb 2022US 2022/0031879 A1Quark Technology Co., Ltd
- Metal halide lamp and manufacturing method thereof23 Apr 2020US 2020/0126782 A1Junwa Lighting Technology Corporation
- Damping ring17 Jan 2019US 2019/0019665 A1Xylem IP Management S.à R.L.
- Protective pipe for a uv tube, in particular a uv-c tube3 May 2018US 2018/0117208 A1sterilAir AG
- Thermally Isolated High Intensity Light Source28 Dec 2017US 2017/0370570 A1Surna Inc.
Most cited
By later US patents
- Luminous lamp having an ultraviolet filtering and explosion proof thin film1,018US 7,394,190 B2Nanoforce Technologies Corporation · 2008
- Shatter-proof fluorescent lamp53US 5,124,618 AMatsushita Electronics Corporation · 1992
- Shatterproofing of fluorescent lamps40US 6,452,325 B1Thermoplastic Processes, Inc. · 2002
- Fluorescent lamp for use in explosive atmospheres such as mines22US 4,042,819 AControl Products, Inc. · 1977
- Double-enveloped lamp having a shield surrounding a light-source capsule within a thick-walled outer envelope21US 4,888,517 AGTE Products Corporation · 1989