Inventor
Clemens Barthelmes
Inventor
Berlin, DE
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Jprimary
H01JElectric discharge tubes or discharge lamps77%
C03CChemical composition of glasses, glazes or vitreous enamels8%
H01KElectric incandescent lamps8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
5,831,388'Rare earth metal halide lamp including niobium'19985,729,091'Metal halide discharge lamp'19985,691,601'Metal-halide discharge lamp for photooptical purposes'19975,689,154'Metal halide gas discharge lamp for projection purposes'19975,369,334'High-pressure discharge lamp with optimized discharge vessel'19945,144,192'High-pressure discharge lamp'19925,107,177'High-pressure discharge lamp'19925,037,342'Method of making an electric lamp, and more particularly a lamp vessel in which electrodes are retained in the lamp by a pinch or press seal'19915,001,395'High-pressure discharge lamp with corrosion protected electrode leads'19914,948,530'Method to make a reflective coating on high-pressure discharge lamps'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1997Patents assigned to PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH (7)· patent assignee history
1990–1998Based in Berlin, DE· patent location history
1994Patents assigned to PATENT TREUHAND GES F FLEKTRIS (1)· patent assignee history
1998Patents assigned to PATENT TREUHAND GES F ELECTRIS (1)· patent assignee history
1998Patents assigned to PATENT TRUEHAND GESELLSCHAFTFU (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH | 7 | 1990–1997 |
| PATENT TREUHAND GES F ELECTRIS | 1 | 1998 |
| PATENT TREUHAND GES F FLEKTRIS | 1 | 1994 |
| PATENT TRUEHAND GESELLSCHAFTFU | 1 | 1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Berlin, DE | 10 | 1990–1998 |