Average Co-Inventor Count = 5.77
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. Kao Corporation (5 from 3,603 patents)
5 patents:
1. 6190574 - Phosphorus-comprising lubricating oil composition
2. 6096692 - Synthetic lubricating oil
3. 5916854 - Biodegradable lubricating base oil, lubricating oil composition
4. 5401433 - Working fluid composition having ketone-containing compound for use in
5. 5300245 - Working fluid composition having ketone-containing compound for use in