Average Co-Inventor Count = 2.67
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. De La Rue International Limited (2 from 194 patents)
2 patents:
1. 7015814 - Security tag
2. 6530525 - Sheet counting apparatus and method