Average Co-Inventor Count = 2.00
ph-index = 2
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. S. Franzen Sohne Gmbh & Co. (2 from 16 patents)
2 patents:
1. 5111918 - Rollable suitcase
2. 5106132 - Closure device for suitcases, briefcases or the like