Average Co-Inventor Count = 2.30
ph-index = 5
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Giesecke & Devrient Gmbh (8 from 672 patents)
2. Man Roland Druckmaschinen Ag (1 from 997 patents)
3. Giesecke+devrient Currency Technology Gmbh (190 patents)
9 patents:
1. 7690300 - Steel intaglio printing method for producing a security document and steel intaglio printing plate and semifinished products therefor and method for production thereof
2. 7311043 - Data carrier with a printed security element and gravure production method thereof
3. 7267053 - Delivery device for a sheet-processing machine
4. 7252239 - Method for producing laser-writable data carriers and data carrier produced according to this method
5. 7213512 - Steel gravure method for the production of a security document, steel gravure plate and semi-product for the same and method for production thereof
6. 7040663 - Value document
7. 6283509 - Data carrier with an optically variable element
8. 6183018 - Data carrier with optically variable color
9. 6036233 - Data carrier with an optically variable element