Norbert Holl
31Patents
8h-index
57Co-inventors
78Inventor score
Filing activity: May 30, 1986 → Nov 8, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7849993B2 | Devices and method for the production of sheet material | Performing Operations; Transporting | 63 | Expired |
| US6061121A | Device and process for checking sheet articles such as bank notes or securities | Physics | 38 | Expired |
| US5201586A | Arrangement for the dynamic compensation of eccentricities of solids of rotation | Emerging Cross-Sectional Technologies | 31 | Expired |
| US7607528B2 | Method and device for checking banknotes | Physics | 10 | Expired |
| US6891180B2 | Camera system for editing documents | Electricity | 10 | Expired |
| US8107712B2 | Method and testing device for testing valuable documents | Physics | 9 | Expired |
| US8917386B2 | Apparatus for checking the authenticity of value documents | Physics | 9 | Active |
| US5084319A | Disk-shaped magnetic recording media, their production and information stores containing these recording media | Emerging Cross-Sectional Technologies | 8 | Expired |
| US8245831B2 | Device and method for checking banknotes | Physics | 6 | Active |
| US4796137A | Protective jacket for a disk-shaped recording medium | Physics | 4 | Expired |
| US8588477B2 | Method for identifying soiling and/or colour fading in the region of colour transitions on documents of value, and means for carrying out the method | Physics | 4 | Active |
| US8077961B2 | Bank note processing machine and method for identifying forged bank notes | Physics | 4 | Expired |
| US5163235A | Apparatus for washing out photopolymer printing plates by means of solvents, drying the printing plates and recovering the solvents | Performing Operations; Transporting | 3 | Expired |
| US9904989B2 | Method for generating a digital image of at least one section of a value document | Electricity | 3 | Active |
| US7414710B2 | Device for checking banknotes | Physics | 3 | Expired |
| US4688129A | Protective jacket for a disk-shaped recording medium | Physics | 3 | Expired |
| US8993956B2 | Method for calibrating a sensor system | Physics | 2 | Active |
| US10573113B2 | Device and method for checking value documents for marking ink | Physics | 1 | Active |
| US9582953B2 | Method for checking a value document | Physics | 1 | Active |
| US9202327B2 | Method for checking the production quality of an optical security feature of a value document | Physics | 1 | Active |
| US10740996B2 | Apparatus and method for checking the authenticity of a security element | Physics | 0 | Active |
| US4822327A | Jacket for a flexible magnetic disk and production of the jacket | Emerging Cross-Sectional Technologies | 0 | Expired |
| US8855960B2 | Device and method for testing sensors | Physics | 0 | Active |
| US7708128B2 | Valuable document and method and device for examining said valuable document | Performing Operations; Transporting | 0 | Expired |
| US4733452A | Production of jackets for flexible magnetic disks, and apparatus for this purpose | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.