Average Co-Inventor Count = 7.63
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. Philip Morris Inc. (3 from 759 patents)
3 patents:
1. 5450862 - Wrapper for a smoking article
2. 5263500 - Cigarette and wrapper with controlled puff count
3. 5168884 - Smoking articles using novel paper wrapper