Average Co-Inventor Count = 2.40
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 (4 from 164,219 patents)
4 patents:
1. D258826 - Point-of-sale terminal
2. D251492 - Printer enclosure
3. D244865 - Magnetic tape cartridge transport
4. D243460 - Portable personal computer