Average Co-Inventor Count = 1.11
ph-index = 3
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. Lion Oil Company (4 from 6 patents)
2. Tosco Corporation (1 from 25 patents)
5 patents:
1. 4459157 - Asphalt composition
2. 4133352 - Pipe coating compositions
3. 4116708 - Asphalt coating compositions
4. 4077928 - Asphalt based compositions
5. 4027059 - Asphalt-based compositions