Average Co-Inventor Count = 8.71
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. Nippon Oil Corporation (7 from 188 patents)
2. Nippon Oil Company (1 from 690 patents)
3. Nippon Mitsubishi Oil Corporation (1 from 84 patents)
4. Petroleum Energy Center (1 from 58 patents)
9 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
8. 6159254 - Wax composition for forming candles
9. 4751335 - Process for preparing a fluid for traction drive