Dietrich Gruehn

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Appenweier, DE

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Patents Grantslast 30 patents

Information Patent Grant
Jacket for a flexible magnetic disk and production of the jacket
- Patent number 4,822,327
- Issue date Apr 18, 1989
- BASF Aktiengesellschaft
- Bernhard Lenz
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Protective jacket for a disk-shaped recording medium
- Patent number 4,796,137
- Issue date Jan 3, 1989
- BASF Aktiengesellschaft
- Dietrich Gruehn
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording medium with an envelope, and an identification part therefor
- Patent number 4,769,731
- Issue date Sep 6, 1988
- BASF Aktiengesellschaft
- Klaus Schoettle
- G11 - INFORMATION STORAGE
Information Patent Grant
Protective jacket for a disk-shaped recording medium
- Patent number 4,755,901
- Issue date Jul 5, 1988
- BASF Aktiengesellschaft
- Hubert Fehrenbach
- G11 - INFORMATION STORAGE
Information Patent Grant
Production of jackets for flexible magnetic disks, and apparatus fo...
- Patent number 4,733,452
- Issue date Mar 29, 1988
- BASF Aktiengesellschaft
- Bernhard Lenz
- G11 - INFORMATION STORAGE
Information Patent Grant
Protective jacket for a disk-shaped recording medium
- Patent number 4,688,129
- Issue date Aug 18, 1987
- BASF Aktiengesellschaft
- Dietrich Gruehn
- G11 - INFORMATION STORAGE