Average Co-Inventor Count = 2.00
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. Btr Limited (2 from 47 patents)
2 patents:
1. 5794647 - Valve system
2. 5564470 - Valve assembly