Average Co-Inventor Count = 3.43
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. Rohm Gmbh (1 from 363 patents)
2. Roehm Gmbh & Co Kg (1 from 103 patents)
2 patents:
1. 6475964 - Motor oil with high dispersivity and good wear protection characteristics
2. 4282132 - Lubricating oil additives