Average Co-Inventor Count = 4.61
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. Sanford Gmbh (4 from 386 patents)
4 patents:
1. D1023147 - Writing instrument
2. D1019777 - Writing instrument cover
3. D1010003 - Writing instrument cap
4. D921753 - Writing instrument