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Steffen Drews
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Hamburg, DE
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last 30 patents
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Patent Grant
Fingerprint detection using sweep-type imager with optoelectronic s...
Patent number
7,706,581
Issue date
Apr 27, 2010
NXP B.V.
Steffen Drews
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data carrier or document carrier
Patent number
7,395,972
Issue date
Jul 8, 2008
Klaus Sickert
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Datacarriers with separate storage of read and write-inhibited memo...
Patent number
5,467,081
Issue date
Nov 14, 1995
U.S. Philips Corporation
Steffen Drews
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
Data carrier or document carrier
Publication number
20070138297
Publication date
Jun 21, 2007
Klaus Sickert
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Direct contactless communication between transponders
Publication number
20050231330
Publication date
Oct 20, 2005
Koninklijke Philips Electronics N.V.
Steffen Drews
G06 - COMPUTING CALCULATING COUNTING