Inventor
Stephen M. Stafford
Inventor
Radford, VA, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F21Vprimary
F21VFunctional features or details of lighting devices or systems thereof42%
F21SNon-portable lighting devices33%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted17%
B01DSeparation8%
PatentTitleYear
6,524,361'Micro-porous filter'20036,461,016'Adjustable recessed downlight'20026,135,613'Lighting fixture assembly sealed at opposite ends with dust covers'20006,095,662'Lighting fixture with emergency illuminating device'20005,911,499'Emergency lighting fixture, especially for hazardous locations'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2003Patents assigned to HUBBELL INC (5)· patent assignee history
1999–2003Based in Radford, VA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HUBBELL INC | 5 | 1999–2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Radford, Virginia, US | 5 | 1999–2003 |