Inventor
Siegfried Riegger
Inventor
Ettenheim, DE
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B29Bprimary
B29BPreparation or pretreatment of the material to be shaped25%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds25%
B29CShaping or joining of plastics13%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds13%
F16FSprings13%
G11BInformation storage based on relative movement between record carrier and transducer13%
PatentTitleYear
5,042,740'Pressure spring for tape cassettes and tape cassettes having said spring'19914,578,455'Process and apparatus for removing volatile constituents from polymer melts or pastes'19864,540,772'Continuous preparation of nylon from aqueous salt solution in precondensation zone having baffles'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–1991Patents assigned to BASF AG (3)· patent assignee history
1985–1991Based in Ettenheim, DE· patent location history
1986Based in Mannheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 3 | 1985–1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ettenheim, DE | 2 | 1985–1991 |
| Mannheim, DE | 1 | 1986 |