Average Co-Inventor Count = 3.15
ph-index = 5
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 164,244 patents)
2. Discovision Associates (2 from 329 patents)
5 patents:
1. D267151 - Typewriter
2. D266768 - Typewriter
3. D258957 - Keyboard housing
4. D257533 - Video disk player
5. D246507 - Container for liquids