Average Co-Inventor Count = 2.90
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 164,219 patents)
3 patents:
1. 4616336 - Independent image and annotation overlay with highlighting of overlay
2. 4611306 - Display menu/chart key
3. 4555700 - Internal image and bit array for display and printing of graphics