Average Co-Inventor Count = 4.00
ph-index = 1
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. Philip Morris USA Inc. (1 from 734 patents)
2. Philip Morris Products S.a. (1,300 patents)
1 patent:
1. 8424540 - Smoking article with valved restrictor