Average Co-Inventor Count = 1.23
ph-index = 8
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 (9 from 140 patents)
9 patents:
1. 4588077 - Carrier handle
2. 4549650 - Article carrier
3. 4372763 - Air filter assembly
4. 4324328 - Carrier for a plurality of articles
5. 4300680 - Article carrier
6. 4284195 - Carrier and handle
7. 4234081 - Carrier for a plurality of articles
8. 4130202 - Carrier for receptacles and blank therefor
9. 4086071 - Air filter assembly