Inventor
Hermann Seibert
Inventor
Kaiserslautern, DE
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B32Bprimary
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form21%
C08JWorking-up21%
Y10TTechnical subjects covered by former us classification21%
B29CShaping or joining of plastics7%
B63BShips or other waterborne vessels7%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds7%
E04BGeneral building constructions7%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers7%
PatentTitleYear
8,722,751'Thermostable microporous polymethacrylimide foams'20147,169,339'Method for producing polymethacrylimide foams'20076,655,001'Process for a diaphragm for electroacoustic transducers'20035,928,459'Process for the production of polymethacrylimide foam materials'19995,849,407'Insulation layer for fire-proofed rooms'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2007Patents assigned to ROEHM GMBH (4)· patent assignee history
1998–2007Based in Kaiserslautern, DE· patent location history
2014Patents assigned to BARTHEL THOMAS (1)· patent assignee history
2014Patents assigned to EVONIK ROEHM GMBH (1)· patent assignee history
2014Patents assigned to GEYER WERNER (1)· patent assignee history
2014Patents assigned to JAHN TORSTEN (1)· patent assignee history
2014Based in Darmstadt, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ROEHM GMBH | 4 | 1998–2007 |
| BARTHEL THOMAS | 1 | 2014 |
| EVONIK ROEHM GMBH | 1 | 2014 |
| GEYER WERNER | 1 | 2014 |
| JAHN TORSTEN | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kaiserslautern, DE | 4 | 1998–2007 |
| Darmstadt, DE | 1 | 2014 |