Inventor
Friedrich Rittmann
Inventor
Ruckersdorf, DE
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H05Bprimary
H05BElectric heating55%
Y02PClimate change mitigation technologies in the production or processing of goods23%
C25CProcesses for the electrolytic production, recovery or refining of metals14%
C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel5%
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace5%
PatentTitleYear
4,675,878'Method and device for the melting and heating of materials'19874,518,365'Device for nippling active electrode sections onto a combination electrode'19854,484,897'Device for nippling up electrodes in an electric furance'19844,481,500'Electrode for electric arc furnaces'19844,474,613'Electrode for fusion electrolysis'19844,468,783'Electrode for arc furnaces'19844,466,105'Electrode for arc furnaces'19844,447,300'Electrode holder for use in fusion electrolysis'19844,446,561'Axially movable electrode holder for use in electric steel production'19844,442,525'Electrode for arc furnaces'19844,441,190'Coupling device for arc furnace electrodes'19844,425,657'Electrode for arc furnaces'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1985Patents assigned to ARC TECH SYST LTD (8)· patent assignee history
1984–1987Patents assigned to CONRADTY NUERNBERG (4)· patent assignee history
1984–1987Based in Ruckersdorf, DE· patent location history
1984–1985Based in Ruckersdorf b. Nurnberg, DE· patent location history
1984Based in Nuremberg, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ARC TECH SYST LTD | 8 | 1984–1985 |
| CONRADTY NUERNBERG | 4 | 1984–1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ruckersdorf, DE | 5 | 1984–1987 |
| Ruckersdorf b. Nurnberg, DE | 5 | 1984–1985 |
| Nuremberg, DE | 2 | 1984 |