Average Co-Inventor Count = 1.85
ph-index = 4
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 164,221 patents)
4 patents:
1. 4884199 - User transaction guidance
2. 3970992 - Transaction terminal with unlimited range of functions
3. 3956615 - Transaction execution system with secure data storage and communications
4. 3937925 - Modular transaction terminal with microprocessor control