Average Co-Inventor Count = 2.25
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. Necchi Societa Per Azioni (3 from 38 patents)
3 patents:
1. 4819573 - Electronic sewing machine
2. 4723496 - Sewing machine with electronic control device for the needle driving
3. 4719866 - Sewing machine with control device for the needle driving motor