Average Co-Inventor Count = 1.33
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. Phillips Petroleum Company (2 from 5,071 patents)
2. Atlantic Richfield Company (2 from 1,851 patents)
4 patents:
1. 4591362 - Fluid injection method
2. 4539098 - Upgrading carbonaceous materials
3. 4379025 - Water removal from butylene oxides by liquid extraction with selected
4. 4375570 - Method of treating alpha-methylbenzyl alcohol dehydration residues