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. The British Hydromechanics Research Association (2 from 12 patents)
2 patents:
1. 4854090 - Feeding abrasive material
2. 4642944 - Feeding abrasive material