Average Co-Inventor Count = 3.00
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. Phillips Petroleum Company (3 from 5,071 patents)
3 patents:
1. 5919996 - Olefin production
2. 5856257 - Olefin production
3. 3994610 - Skid resistance of asphalt surface roads