Average Co-Inventor Count = 1.50
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. Merz & Krell Gmbh & Co. (2 from 13 patents)
2. Merz & Krell Gmbh & Co Kgaa (1 from 17 patents)
3 patents:
1. D485574 - Writing utensil
2. D443896 - Writing instrument
3. D437888 - Writing instrument