Inventor
Jean Kieffer
Inventor
Crolles, FR
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Gprimary
H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines29%
C23CCoating metallic material14%
G01RMeasuring electric variables14%
H01HElectric switches14%
H02BBoards, substations or switching arrangements for the supply or distribution of electric power14%
Y10TTechnical subjects covered by former us classification14%
PatentTitleYear
6,015,586'Cold dry plating process for forming a polycrystalline structure film of zinc-iron by mechanical projection of a composite material'20004,748,303'Isolating switch of a high voltage metalclad installation'19884,739,254'Voltage measuring device of a high voltage metalclad installation'19884,543,712'Process for assembling a clad busbar of an electrical installation'19854,477,691'High tension metal-clad installation subdivided into tight compartments'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1988Patents assigned to MERLIN GERIN (4)· patent assignee history
1984Based in Saint Martin d'Heres, FR· patent location history
1985Based in Brignoud, FR· patent location history
1988Based in Crolles, FR· patent location history
2000Patents assigned to ACHESON IND INC (1)· patent assignee history
2000Based in Obernai, FR· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MERLIN GERIN | 4 | 1984–1988 |
| ACHESON IND INC | 1 | 2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Crolles, FR | 2 | 1988 |
| Obernai, FR | 1 | 2000 |
| Brignoud, FR | 1 | 1985 |
| Saint Martin d'Heres, FR | 1 | 1984 |