Average Co-Inventor Count = 1.76
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. Crown Zellerbach Corporation (5 from 107 patents)
5 patents:
1. 4189077 - Sheet material dispensing device
2. 4106684 - Sheet material dispensing device
3. 4026752 - Tail securing apparatus
4. 4000242 - Web material treating system including an inflatable platen roller
5. 3960272 - Roll product with manually graspable tail end and manufacture thereof