Inventor
Dietrich Gruehn
Inventor
Appenweier, DE
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer56%
Y10TTechnical subjects covered by former us classification22%
B29CShaping or joining of plastics11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
4,822,327'Jacket for a flexible magnetic disk and production of the jacket'19894,796,137'Protective jacket for a disk-shaped recording medium'19894,769,731'Recording medium with an envelope, and an identification part therefor'19884,755,901'Protective jacket for a disk-shaped recording medium'19884,733,452'Production of jackets for flexible magnetic disks, and apparatus for this purpose'19884,688,129'Protective jacket for a disk-shaped recording medium'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1989Patents assigned to BASF AG (6)· patent assignee history
1987–1989Based in Appenweier, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 6 | 1987–1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Appenweier, DE | 6 | 1987–1989 |