Average Co-Inventor Count = 1.50
ph-index = 4
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. Gebr. Happich Gmbh (2 from 124 patents)
2. Happich Fahrzeug-dachsysteme Gmbh (1 from 8 patents)
3. Happich Fahrzeng-dachsysteme Gmbh (1 from 1 patent)
4 patents:
1. 5556221 - Fastening device for bars of a roof rack
2. 5492258 - Cross support for roof loads on a motor vehicle provided with roof
3. 5419479 - Transverse carrier clamp for roof luggage carrier for automotive
4. 5377890 - Roof rack for vehicles