Average Co-Inventor Count = 1.33
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. Faber-Castell Ag (2 from 45 patents)
2. A.w. Faber-Castell Unternehmensverwaltung Gmbh & Co. (2 from 10 patents)
4 patents:
1. 8360670 - Pen-like applicator
2. 8282302 - Pen with locking cap
3. 6293720 - Pencil having an axially-moveable core, particularly a soft-core pencil
4. 6149331 - Refillable soft lead pencil