Average Co-Inventor Count = 4.46
ph-index = 5
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. Fujisawa Pharmaceutical Company, Ltd. (6 from 940 patents)
6 patents:
1. 5245001 - Aminoarylsulfonic acid-phenol-formaldehyde condensate and concrete
2. 5092934 - Aminoarylsulfonic acid-phenol-formaldehyde condensate and concrete
3. 4936918 - Aminoarylsulfonic acid-phenol-formaldehyde condensate and concrete
4. 4828619 - Air-entraining agent for flyash cement composition
5. 4808641 - Concrete admixture
6. 4650522 - Concrete admixture