Average Co-Inventor Count = 2.73
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. Ncr Corporation (5 from 4,491 patents)
5 patents:
1. 5539159 - Handwriting capture device
2. 5380958 - Handwriting capture device
3. 5322978 - Handwriting capture device with integral forms printer
4. 5227590 - Handwriting capture device
5. 5120906 - Handwriting capture device