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. Speedfam Corporation (3 from 49 patents)
3 patents:
1. 5498196 - Wafer polishing method and apparatus
2. 5498199 - Wafer polishing method and apparatus
3. 5329732 - Wafer polishing method and apparatus