Average Co-Inventor Count = 1.00
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. S. Franzen Sohne Gmbh & Co. (2 from 16 patents)
2. S. Franzen Sohne Gmbh & Co. Kg (1 from 1 patent)
3 patents:
1. 4823574 - Permutation lock
2. 4819466 - Closure mechanism for a case
3. 4682483 - Permutation lock