Average Co-Inventor Count = 2.14
ph-index = 5
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 (5 from 132 patents)
5 patents:
1. D668153 - Flip-top closure
2. 7559432 - Closure with frangible membrane
3. D548075 - Closure for container
4. D545677 - Closure for container
5. D531900 - Closure for container