Average Co-Inventor Count = 4.13
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. (5 from 759 patents)
5 patents:
1. 5012823 - Tobacco processing
2. 4993434 - Cigarette rods with liquid flavor centers
3. 4966170 - Tobacco processing
4. 4936920 - High void volume/enhanced firmness tobacco rod and method of processing
5. 4619276 - Tobacco processing