Christian Schäfer

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Uslar, DE

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Patents Grantslast 30 patents

Information Patent Grant
Filter assembly for vacuum filtration
- Patent number 6,623,631
- Issue date Sep 23, 2003
- Sartorius AG
- Andreas Graus
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Plastic filtration unit bonded by an L-shaped plastic melt
- Patent number 6,427,846
- Issue date Aug 6, 2002
- Vivascience AG
- Andreas Graus
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL