Average Co-Inventor Count = 2.91
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. Crayola Llc. (4 from 131 patents)
4 patents:
1. 11279165 - Ink-based marking device having a multi-component nib structure
2. 10040312 - Roller-ball paint marker
3. 9790383 - Marking system
4. 9464185 - Marking system