Average Co-Inventor Count = 1.85
ph-index = 7
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. Gao Gesellschaft Fur Automation Und Organisation Mbh (6 from 182 patents)
2. Giesecke & Devrient Gmbh (3 from 672 patents)
9 patents:
1. 7849993 - Devices and method for the production of sheet material
2. 7449212 - Security document
3. 7207490 - Security element
4. 6474695 - Security element in the form of a thread or be embedded in security and methods of producing it
5. 5876068 - Security element in the form of a thread or strip to be embedded in
6. 5803503 - Magnetic metallic safeguarding thread with negative writing
7. 5599047 - Magnetic metallic safeguarding thread with negative writing and a method
8. 4763927 - Security document
9. 4504357 - Security with identifying marks printed in the substance of a paper layer