Average Co-Inventor Count = 2.00
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. Silca S.p.a. (3 from 11 patents)
3 patents:
1. 6641339 - Clamp for a key duplicating machine
2. 5833406 - Duplicating machine, particularly for punched and laser keys
3. 5544510 - Key and holder combination