Average Co-Inventor Count = 2.40
ph-index = 3
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. Royal Ordnance Plc (3 from 36 patents)
3 patents:
1. 6048428 - Pipe construction
2. 5636878 - Pipe coupling
3. 5579809 - Reinforced composite pipe construction