Average Co-Inventor Count = 4.00
ph-index = 2
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 Inc. (2 from 759 patents)
2 patents:
1. 5934461 - Metal cigarette package
2. 5526559 - Method of making a cigarette package