Karl-Heinz Schrader

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Hanover, DE

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Patents Grantslast 30 patents

Information Patent Grant
Aminoplast microencapsulation system
- Patent number 5,089,339
- Issue date Feb 18, 1992
- Gunter Pietsch
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Microcapsules and microcapsule production process
- Patent number 5,011,634
- Issue date Apr 30, 1991
- Papierfabrik August Koehler AG
- Gunter Pietsch
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Process for microencapsulating hydrophobic oils, the microcapsules...
- Patent number 4,965,025
- Issue date Oct 23, 1990
- Papierfabrik August Koehler AG
- Gunter Pietsch
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Microcapsules containing oils and soluble color reaction components...
- Patent number 4,824,823
- Issue date Apr 25, 1989
- Papierfabrik August Koehler AG
- Gunter Pietsch
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Transparent image marking sheet for projection systems
- Patent number 4,296,150
- Issue date Oct 20, 1981
- Pelikan A.G.
- Norbert Mecke
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS