Hartwig Ruell

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Mt. Laurel, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Fingerprint sensing device for deriving an electric signal
- Patent number 4,428,670
- Issue date Jan 31, 1984
- Siemens Corporation
- Hartwig Ruell
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Fingerprint sensor
- Patent number 4,394,773
- Issue date Jul 19, 1983
- Siemens Corporation
- Hartwig Ruell
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Automobile identification system
- Patent number 4,368,979
- Issue date Jan 18, 1983
- Siemens Corporation
- Hartwig Ruell
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Transducer for fingerprints and apparatus for analyzing fingerprints
- Patent number 4,358,677
- Issue date Nov 9, 1982
- Siemens Corporation
- Hartwig Ruell
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Input sensor unit for a fingerprint identification system
- Patent number 4,340,300
- Issue date Jul 20, 1982
- Siemens Corporation
- Hartwig Ruell
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Fingerprint transducer and reading apparatus
- Patent number 4,336,998
- Issue date Jun 29, 1982
- Siemens Corporation
- Hartwig Ruell
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE