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. International Business Machines Corporation (2 from 164,219 patents)
2 patents:
1. 5563750 - Shaft mounting for a disk file
2. 5315463 - Disk file having thermal expansion ring for ensuring disk/hub