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. R.j. Reynolds Tobacco Company (1 from 960 patents)
2. Brown & Williamson Tobacco Corporation (1 from 282 patents)
2 patents:
1. 7398783 - Smoking article
2. 6779531 - Smoking material