Inventor
Lawrence W. Speaker
Inventor
Hendersonville, NC, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H05Bprimary
H05BElectric heating31%
H01FMagnets15%
H01JElectric discharge tubes or discharge lamps15%
C08LCompositions of macromolecular compounds8%
F21VFunctional features or details of lighting devices or systems thereof8%
F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
Y10TTechnical subjects covered by former us classification8%
PatentTitleYear
5,909,082'Starting aid for high intensity discharge lamps'19995,444,334'System for starting a high intensity discharge lamp'19955,406,175'Lead ballast circuit with power regulation for a gas discharge lamp'19955,400,223'Sports lighting luminaire having a broken glass safety shutdown circuit'19955,378,965'Luminaire including an electrodeless discharge lamp as a light source'19954,975,624'Spark gap device particularly suited for a rapid restrike circuit for metal halide lamps'19904,601,753'Powdered iron core magnetic devices'19864,601,765'Powdered iron core magnetic devices'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–1999Patents assigned to GEN ELECTRIC (8)· patent assignee history
1986–1995Based in Hendersonville, NC, US· patent location history
1999Based in Louisville, KY, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 8 | 1986–1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hendersonville, NC, US | 7 | 1986–1995 |
| Louisville, KY, US | 1 | 1999 |