Average Co-Inventor Count = 3.00
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. P. P. Payne Limited (2 from 9 patents)
2 patents:
1. 6627031 - Tagging material method and means for applying tagging material
2. 6162550 - Tagging material