Average Co-Inventor Count = 4.09
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. Esselte Corporation (2 from 49 patents)
2. R.r. Donnelley and Sons Company (1 from 293 patents)
3 patents:
1. 9108453 - Sortable notepad
2. 8864177 - Movable highlight strip
3. 8317395 - Stack carrier