Average Co-Inventor Count = 2.57
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. Mannesmann Aktiengesellschaft (3 from 1,150 patents)
2. Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v. (4,835 patents)
3. Protime Gmbh (0 patent)
3 patents:
1. 6211798 - Process and guidance system for ensuring reliable guidance of a vehicle
2. 6124826 - Navigation device for people
3. 5919246 - Target input for navigation system