Average Co-Inventor Count = 5.00
ph-index = 4
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. Ekco Products, Inc. (3 from 18 patents)
2. Packaging Corporation of America (1 from 140 patents)
4 patents:
1. D312026 - Compartmented food tray
2. D312025 - Food tray
3. D312024 - Food tray
4. 4863058 - Food packaging cover