Inventor
Douglas A. Doughty
Inventor
Gilroy, CA, US
Overview
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Jprimary
H01JElectric discharge tubes or discharge lamps42%
C09KMaterials for miscellaneous applications, not provided for elsewhere8%
F21VFunctional features or details of lighting devices or systems thereof8%
G21KHandling of particles or ionising radiation not otherwise provided for8%
A01GHorticulture6%
H05BElectric heating6%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications6%
F21SNon-portable lighting devices3%
H05HPlasma technique3%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h103%
PatentTitleYear
10,109,473Mechanically sealed tube for laser sustained plasma lamp and production method for same201810,006,607Modular multi-aperture reflector sheets for light distribution and control20189,392,752'Plasma growth lamp for horticulture'20169,224,568'Arc tube device and stem structure for electrodeless plasma lamp'20158,847,488'Fill combination and method for high intensity lamps'20148,766,539'Electrodeless lamps with grounded coupling elements and improved bulb assemblies'20148,629,616'Arc tube device and stem structure for electrodeless plasma lamp'20148,373,352'Electrodeless plasma lamp array'20138,242,671'Metal body arc lamp'20127,679,276'Metal body arc lamp'20106,774,556'Device with Mn2 activated green emitting SrAl12O19 luminescent material'20046,302,959'Mn2+ activated green emitting SrAl12O19 luminescent material'20016,210,605'Mn2+ activated green emitting SrAL12O19 luminiscent material'20015,866,984'Mercury-free ultraviolet discharge source'19995,851,063'Light-emitting diode white light source'19985,500,567'Apparatus for securing an amalgam at the apex of an electrodeless fluorescent lamp'19965,136,214'Use of silicon to extend useful life of metal halide discharge lamps'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2001Patents assigned to GEN ELECTRIC (6)· patent assignee history
1992Based in Amsterdam, NY, US· patent location history
1996–1999Based in West Charlton, NY, US· patent location history
2001–2004Based in Goffstown, NH, US· patent location history
2010–2018Based in Gilroy, CA, US· patent location history
2012–2014Patents assigned to DOUGHTY DOUGLAS A (5)· patent assignee history
2013–2014Patents assigned to ESPIAU FREDERICK M (2)· patent assignee history
2013–2014Patents assigned to MATLOUBIAN MEHRAN (2)· patent assignee history
2014–2016Patents assigned to TOPANGA USA INC (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 6 | 1992–2001 |
| DOUGHTY DOUGLAS Aself | 5 | 2012–2014 |
| TOPANGA USA INC | 4 | 2014–2016 |
| ESPIAU FREDERICK M | 2 | 2013–2014 |
| MATLOUBIAN MEHRAN | 2 | 2013–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Gilroy, California, US | 10 | 2010–2018 |
| Goffstown, NH, US | 3 | 2001–2004 |
| West Charlton, New York, US | 3 | 1996–1999 |
| Amsterdam, New York, US | 1 | 1992 |