Average Co-Inventor Count = 4.00
ph-index = 1
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. Dainippon Screen Mfg. Co., Ltd. (2 from 1,306 patents)
2 patents:
1. 8033288 - Substrate treatment apparatus
2. 7267128 - Substrate treating apparatus