Average Co-Inventor Count = 4.98
ph-index = 3
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 (4 from 672 patents)
2. Giesecke+devrient Currency Technology Gmbh (1 from 188 patents)
5 patents:
1. 10043334 - Sensor for checking value documents
2. 8616584 - Value document, production and verification of value documents
3. 8510062 - Method for assessing a state of a document of value with regard to limpness using ultrasound, and means for carrying out the method
4. 8139839 - Apparatus for checking the authenticity of banknotes
5. 7699153 - Method for identifying counterfeit banknotes