Average Co-Inventor Count = 3.43
ph-index = 1
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 164,108 patents)
4 patents:
1. 10387842 - System, method, and program for filtering emails
2. 8478832 - Checking destination email addresses against historical address information
3. 8380976 - System, server, method, and computer program for relaying electronic mail
4. 8250160 - Checking destination email addresses against historical address information