Inventor
Walter Schonherr
Inventor
Giengen/Hurben, DE
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Kprimary
H01KElectric incandescent lamps47%
H01JElectric discharge tubes or discharge lamps18%
F21SNon-portable lighting devices12%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
C07BGeneral methods of organic chemistry6%
C08JWorking-up6%
H01RElectrically-conductive connections6%
PatentTitleYear
5,925,325'Plasma unit'19994,795,939'Electric lamp bulb attachment arrangement'19894,789,920'Lamp and base assembly, particularly for association with an automotive head lamp reflector'19884,751,421'Lamp with cement-free base structure'19884,609,977'Incandescent lamp-base assembly, particularly for an automotive-type halogen incandescent lamp'19864,595,859'Halogen incandescent lamp and socket combination, particularly for direct assembly into a fixture with bayonet lock'19864,492,893'Dual filament halogen cycle automotive-type incandescent lamp'19854,479,072'Sealed-beam headlamp having seating abutment on the outside of concave reflector'19844,412,273'Halogen incandescent lamp with part metal, part plastic socket, particularly for automotive headlights'19834,295,076'Electric lamp with cementless attached base'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1989Patents assigned to PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH (9)· patent assignee history
1981–1988Based in Giengen, DE· patent location history
1983–1989Based in Giengen/Hurben, DE· patent location history
1999Patents assigned to ARPLAS GES FUER PLASMATECHNOLOGIE MBH (1)· patent assignee history
1999Based in Hennef, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH | 9 | 1981–1989 |
| ARPLAS GES FUER PLASMATECHNOLOGIE MBH | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Giengen/Hurben, DE | 5 | 1983–1989 |
| Giengen, DE | 4 | 1981–1988 |
| Hennef, DE | 1 | 1999 |