Average Co-Inventor Count = 6.00
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. Rothmans, Benson & Hedges, Inc. (3 from 40 patents)
3 patents:
1. 5752528 - Cigarette extinguishing storage device
2. 5501332 - Cigarette extinguishing storage device
3. 5377826 - Cigarette extinguishing storage device