Average Co-Inventor Count = 2.25
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. Wilhelm Karmann Gmbh (3 from 183 patents)
3 patents:
1. 6322131 - Convertible vehicle with a rear window which can be lowered
2. 6302470 - Convertible vehicle
3. 5558389 - Retractable folding top for a convertible