Average Co-Inventor Count = 2.86
ph-index = 1
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. Coal Industry (Patents) Limited (2 from 281 patents)
2 patents:
1. 4303275 - Slideway means and excavating machines comprising slideway means
2. 4302054 - Cutter unit assemblies for excavating machines and to excavating