Jan Adolf Ernst Sperna Weiland

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Deventer, NL

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Patents Grantslast 30 patents

Information Patent Grant
Pump and pump outlet nozzle
- Patent number 6,026,993
- Issue date Feb 22, 2000
- Sara Lee/DE N.V.
- Jan Adolf Ernst Sperna Weiland
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Device for withdrawing liquid from a reservoir by means of a water...
- Patent number 5,181,753
- Issue date Jan 26, 1993
- Sara Lee/DE N.V.
- Jan C. van Hattem
- B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
Information Patent Grant
Method and an apparatus for making a beverage such as coffee, soup,...
- Patent number 5,083,503
- Issue date Jan 28, 1992
- Sara Lee/DE N.V.
- Jan C. van Hattem
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...