Average Co-Inventor Count = 5.46
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. Sanford Gmbh (2 from 386 patents)
2 patents:
1. 7467907 - Valve mechanisms for paint or ink brush with integrated reservoir
2. 7290955 - Bold-fine multiple width marking instrument