Inventor
Roger T. Hebert
Inventor
Peabody, MA, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Jprimary
H01JElectric discharge tubes or discharge lamps50%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them20%
F21SNon-portable lighting devices10%
H01KElectric incandescent lamps10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
PatentTitleYear
4,345,178'High intensity reflector lamp'19824,156,890'Flash assembly using elongated trigger bar'19794,097,774'Arc discharge flash lamp and shielded cold cathode therefor'19784,084,112'Incandescent lamp having two-part insulative base'19784,023,893'Lamp and lens retrofit assembly for overhead projector'19774,001,624'Soft glass flashtube'19773,993,922'Arc discharge lamp with integral trigger electrode'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1979Patents assigned to GTE SYLVANIA INC (6)· patent assignee history
1976–1982Based in Peabody, MA, US· patent location history
1982Patents assigned to GTE PROD CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GTE SYLVANIA INC | 6 | 1976–1979 |
| GTE PROD CORP | 1 | 1982 |
Locations
| Location | Patents | Span |
|---|---|---|
| Peabody, Massachusetts, US | 7 | 1976–1982 |