Average Co-Inventor Count = 2.40
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. Thorn Emi Plc (1 from 145 patents)
2. Central Research Laboratories Limited (1 from 74 patents)
2 patents:
1. 5612528 - Processing of magnetically recorded data to detect fraud
2. 4956636 - E.A.S. tag having a control component with selectively magnetizeable