Average Co-Inventor Count = 14.01
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. Nippon Oil Corporation (7 from 188 patents)
7 patents:
1. 8299006 - Compressor oil composition
2. 8247360 - Heat treating oil composition
3. 8236740 - Lubricating oil composition
4. 8232233 - Lubricating oil composition for machine tools
5. 8227388 - Hydraulic oil composition
6. 8227387 - Metalworking oil composition
7. 8193129 - Refrigerator oil, compressor oil composition, hydraulic fluid composition, metalworking fluid composition, heat treatment oil composition, lubricant composition for machine tool and lubricant composition