Average Co-Inventor Count = 3.43
ph-index = 1
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. Siemens Aktiengesellschaft (1 from 30,061 patents)
2. Mannesmann Vdo Ag (1 from 415 patents)
3. Continental Automotive Gmbh (2,388 patents)
2 patents:
1. 6816785 - Navigation device and position correction method
2. 6531958 - Indicating instrument