Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5551295 | Method and apparatus using ultrasonic and light waves for identification of test specimens | — | 1996-09-03 |
| 5234624 | Method of manufacture of a data processing card provided with signs and data processing card provided with signs obtained by laser radiation | Eric J. Bauer | 1993-08-10 |
| 4816657 | Method and device for characterizing and identifying falsification-proof data supports | Hans-Georg Winderlich | 1989-03-28 |
| 4767919 | Method for the detection of authenticity in a data carrier and apparatus for applying said method | Siegfried Bauer | 1988-08-30 |
| 4705938 | Method of securing data on a data support | Hans-Georg Winderlich | 1987-11-10 |
| 4680807 | Method and device for identifying data supports | Hans-Georg Winderlich | 1987-07-14 |
| 4650979 | Method for the detection of authenticity in a data carrier and apparatus for applying said method | Siegfried Bauer | 1987-03-17 |
| 4649265 | Method for protection against the re-transfer of uniquely recorded information on a data carrier and apparatus for recording and/or reading re-transfer-protected information | Siegfried Bauer | 1987-03-10 |
| 4629873 | Method and means for producing and analyzing secret identifying code marks in machine-scanned data carriers | Hans-Georg Winderlich | 1986-12-16 |
| 4621188 | Data card and data strip measuring means | Hans-Georg Winderlich | 1986-11-04 |
| 4620727 | Credit card | Hans-Georg Winderlich | 1986-11-04 |
| 4588286 | Copying apparatus with use registering means | Hans-Georg Winderlich | 1986-05-13 |
| 4582986 | Method and apparatus for the characteristic marking and/or identification of a data-carrier | Hans-Georg Winderlich | 1986-04-15 |
| 4546242 | Method for protecting against the re-transfer of uniquely recorded information on a data carrier and apparatus for recording and/or reading re-transfer-protected information | Siegfried Bauer | 1985-10-08 |
| 4542465 | Method of producing a controlled number of authorization members | Hans-Georg Winderlich | 1985-09-17 |
| 4535418 | Data carrier controlled data processing | Hans-Georg Winderlich | 1985-08-13 |
| 4533237 | Method and device for registering the use of copying machines | Hans-George Winderlich, Siegfried Bauer, Zeljko H. Adamovic | 1985-08-06 |
| 4518852 | Method for operating automatic devices such as cash registers or the like and a device for carrying out the method | Hans-Georg Winderlich | 1985-05-21 |
| 4505471 | Device for feeding data supports in a processing arrangement | Siegfried Bauer | 1985-03-19 |
| 4501959 | Method and apparatus for aligning flat data supports | Hans-Georg Winderlich | 1985-02-26 |
| 4493107 | Method and device for identifying data supports | Hans-Georg Winderlich | 1985-01-08 |
| 4472050 | Copying apparatus for producing combined copies | Hans-Georg Winderlich, Siegfried Bauer, Zeljko H. Adamovic | 1984-09-18 |
| 4469937 | Method of securing data | Hans-Georg Winderlich | 1984-09-04 |
| 4450348 | Method and device for characterizing and identifying falsification proof data boards | Hans-Georg Winderlich | 1984-05-22 |
| 4432567 | Authorization card | Hans-Georg Winderlich | 1984-02-21 |