Average Co-Inventor Count = 1.14
ph-index = 4
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 (6 from 5,071 patents)
6 patents:
1. 4619812 - Carbon black production apparatus
2. 4612711 - Apparatus and method for drying particulate material
3. 4601892 - Process for producing carbon black
4. 4542007 - Method for production of carbon black and start-up thereof
5. 4451231 - Drying of particulate material
6. 4309400 - Startup procedure