Average Co-Inventor Count = 2.50
ph-index = 3
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. D353391 - Cash register
2. 4912747 - Interlock device for electrical equipment
3. D303538 - Cash register or similar article
4. D302826 - Cash register or similar article
5. D302436 - Cash register or similar article