Inventor
Stuart K. Denham
Inventor
Waldoboro, ME, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Kprimary
H01KElectric incandescent lamps38%
H01JElectric discharge tubes or discharge lamps25%
Y10TTechnical subjects covered by former us classification25%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications13%
PatentTitleYear
8,215,002'Method of making a lamp coil'20128,183,760'Coils for electron discharge devices'20126,853,119'Double layer electrode coil for a HID lamp and method of making the electrode coil'20055,883,468'Tungsten halogen lamp with specific fill material, fill pressure, and filament coil parameters'19994,806,817'Filament supporting multi-planar wire insert for electric incandescent lamp'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2012Based in Waldoboro, ME, US· patent location history
1999–2012Patents assigned to OSRAM SYLVANIA INC (4)· patent assignee history
1999Based in Waldboro, ME, US· patent location history
2012Patents assigned to BOTTOM DOUGLAS (1)· patent assignee history
2012Patents assigned to COUSHAINE CHARLES M (1)· patent assignee history
2012Patents assigned to DENHAM STUART (1)· patent assignee history
2012Patents assigned to DENHAM STUART K (1)· patent assignee history
2012Based in Nottingham, NH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| OSRAM SYLVANIA INC | 4 | 1999–2012 |
| BOTTOM DOUGLAS | 1 | 2012 |
| COUSHAINE CHARLES M | 1 | 2012 |
| DENHAM STUARTself | 1 | 2012 |
| DENHAM STUART Kself | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Waldoboro, ME, US | 3 | 1989–2012 |
| Nottingham, NH, US | 1 | 2012 |
| Waldboro, ME, US | 1 | 1999 |