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Patents

Patents are registered for a number of different technologies, such as an ultrasonic transducer,  biometric algorithms, fingerprint image and recognition, but also for new innovative application of ultrasonic technology.:

Selected list of patent:

PL-423001-A1 - Method for quality control of connections of elements with circular cross-section magnetically impelled arc butt welded. 2019

EP-2193732-B1 - Domestic cooking appliance comprising a device for the detection of the boiling moment of liquids. 2012

DE-50009032-D1 - Pulse ultrasonic transducer with an elementar block of piezoelective material. 2005

US-6164135-A - Method and device for the structure analysis and/or for detecting the position of layered objects. 2000

CA-2366956-A1 - Impulse sound transducer with an elementary block made of piezoelectric material. 2000

EP-0850019-B1 - Method and device for the structure analysis and/or for detecting the position of layered objects. 1999

DE-4418830-C2 - Method and device for producing spherical waves in the ultrasonic range. 1999

DE-59407614-D1 - Device for detecting surface structures. 1999

DE-59504696-D1 - Method and device for scanning an ultrasonic field, 1999

EP-0756740-B1 - Process and device for tracing an ultrasound field. 1998

US-5828627-A - Method of and apparatus for producing spherical waves in the ultrasonic range. 1998

WO-9716260-A1 - Piezoelectric ultrasonic transducer. 1997

DE-19644676-A1 - Sound transducer. 1997

US-5589636-A - Method of and apparatus for the detection of an ultrasonic field. 1996

US-5515298-A - Apparatus for determining surface structures. 1996

DE-3751415-D1 - Method for detecting a fingerprint. 1995

EP-0262186-B1 - Process for recognizing a fingerprint. 1995

DE-4429680-A1 - Method for recognizing objects detected by ultrasound. 1995

WO-9506262-A1 - Process for identifying ultrasonically registered objects. 1995

DE-4414081-C1 Local ultrasound field scanning method e.g. for surface or sub-surface structure probe. 1995

US5258922 - Process and device for determining of surface structures. 1993

US4977601 Method of recognizing a fingerprint. 1990

DE-3613549-A1 - Fed. Rep. of Germany - Method of recognizing a fingerprint. 1986 Mar. 27