Average Co-Inventor Count = 4.50
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. Tel-varian Limited (2 from 6 patents)
2. Tokyo Electron Kabushiki Kaisha (1 from 79 patents)
3 patents:
1. 5474410 - Multi-chamber system provided with carrier units
2. 5445675 - Semiconductor processing apparatus
3. 5332442 - Surface processing apparatus