Average Co-Inventor Count = 1.71
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. Berol Corporation (4 from 102 patents)
4 patents:
1. 6651827 - Brochure holder
2. D481761 - Vertical file
3. 6474008 - Soft label holder
4. D458640 - Wall file