Average Co-Inventor Count = 7.00
ph-index = 1
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. Rothmans, Benson & Hedges, Inc. (2 from 40 patents)
2 patents:
1. 5379788 - Multiple-smoking cigarette system
2. 5374869 - Cigarette system