Average Co-Inventor Count = 3.91
ph-index = 5
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. R.j. Reynolds Tobacco Company (5 from 960 patents)
5 patents:
1. 5246017 - Cigarette and cigarette filter element therefor
2. 5105834 - Cigarette and cigarette filter element therefor
3. 5031646 - Cigarette
4. 4920990 - Cigarette
5. 4643205 - Smoking product