Average Co-Inventor Count = 1.71
ph-index = 2
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 (2 from 164,108 patents)
2 patents:
1. 6721416 - Call centre agent automated assistance
2. 6594347 - Speech encoding in a client server system