Average Co-Inventor Count = 2.40
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 164,108 patents)
4 patents:
1. 7688456 - Assessment and optimization for metrology instrument
2. 7453583 - Assessment and optimization for metrology instrument including uncertainty of total measurement uncertainty
3. 7352478 - Assessment and optimization for metrology instrument
4. 7286247 - Assessment and optimization for metrology instrument including uncertainty of total measurement uncertainty