Average Co-Inventor Count = 1.64
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. Packaging Corporation of America (3 from 140 patents)
3 patents:
1. 11325741 - Tray with cellular back and side walls
2. 9950829 - Displayable shipping container
3. 8302845 - Shipper display container