Average Co-Inventor Count = 4.29
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. Other (2 from 833,002 patents)
2. Osaka Sanso Kogyo Ltd. (1 from 20 patents)
3. Sanso Kogyo Kabushiki Kaisha (1 from 1 patent)
3 patents:
1. 5407492 - Process for forming passivated film
2. 5226968 - Apparatus and method for oxidation treatment of metal
3. 5224998 - Apparatus for oxidation treatment of metal