Average Co-Inventor Count = 4.00
ph-index = 2
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. International Business Machines Corporation (4 from 164,221 patents)
4 patents:
1. 7847926 - Defining a pattern on a substrate
2. 7315367 - Defining a pattern on a substrate
3. 5029555 - Wafer holder method and apparatus in a vacuum deposition system
4. 4643627 - Vacuum transfer device