Average Co-Inventor Count = 2.47
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. Sharp Corporation (7 from 847 patents)
7 patents:
1. D268420 - Electronic cash register
2. D264599 - Electronic cash register
3. D264600 - Key board for electronic cash register
4. D261994 - Digital watch
5. D261731 - Digital watch
6. D261732 - Digital watch
7. D259201 - Electronic calculating machine