Average Co-Inventor Count = 1.50
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. Ing C. Olivetti C., S.p.a. (3 from 423 patents)
3 patents:
1. 3991875 - Device for moving cards or separate forms in an accounting machine
2. 3966037 - Equipment for handling different forms for an accounting machine
3. 3938644 - Horizontal tabulation apparatus for accounting machines or the like