Average Co-Inventor Count = 1.89
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. International Business Machines Corporation (3 from 164,108 patents)
3 patents:
1. D272156 - Automatic sheet feed device or the like
2. D266849 - Impact printer or the like
3. D265099 - Print wheel cartridge or the like