Inventor
Duane A. Stafford
Inventor
Champaign, IL, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Jprimary
H01JElectric discharge tubes or discharge lamps67%
B07CPostal sorting17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
PatentTitleYear
6,910,932'Solid mercury releasing material and method of dosing mercury into discharge lamps'20056,791,254'Fluorescent lamp containing a mercury zinc amalgam and a method of manufacture'20046,339,287'Fluorescent lamp containing a mercury zinc amalgam and a method of manufacture'20025,882,237'Fluorescent lamp containing a mercury zinc amalgam and a method of manufacture'19994,462,496'Method and apparatus for separating spheres from non-spheres'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984Patents assigned to APL ANDERSON INC (1)· patent assignee history
1984–2005Based in Champaign, IL, US· patent location history
1999–2005Patents assigned to ADVANCED LIGHTING TECH INC (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ADVANCED LIGHTING TECH INC | 4 | 1999–2005 |
| APL ANDERSON INC | 1 | 1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| Champaign, Illinois, US | 5 | 1984–2005 |