Average Co-Inventor Count = 5.33
ph-index = 4
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)
2. Other (1 from 832,680 patents)
4 patents:
1. 5979461 - Smoking article wrapper having filler of hydromagnesite/magnesium
2. 5927288 - Hydromagnesite/magnesium hydroxide fillers for smoking article wrappers
3. 5595577 - Method for making a carbonaceous heat source containing metal oxide
4. 5468266 - Method for making a carbonaceous heat source containing metal oxide