Average Co-Inventor Count = 4.00
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. Portola Packaging Limited (3 from 132 patents)
3 patents:
1. D556036 - Container closure having a pull tab
2. D549098 - Container closure having a pull tab
3. D530603 - Container closure having a pull tab