Average Co-Inventor Count = 3.75
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. Mannesmann Rexroth Corporation (2 from 238 patents)
2 patents:
1. 4780069 - Directlly actuated vane-type pump
2. 4697990 - Variable capacity vane pump with means to vary the area of overlap