Average Co-Inventor Count = 2.77
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. Texaco Inc. (2 from 3,161 patents)
2. Ethyl Additives Corporation (1 from 6 patents)
3 patents:
1. 5614124 - Polyisobutylene succinimide, ethylene-propylene succinimide and an
2. 5370803 - Efficient method of producing lubricant detergent additives
3. 5292443 - Process for producing neutralized sulfurized alkylphenate lubricant