Average Co-Inventor Count = 2.86
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. Siemens Energy Global Gmbh & Co. Kg (1 from 642 patents)
2. Dresser-rand Company (1 from 362 patents)
3. Spm Oil & Gas Inc. (1 from 93 patents)
2 patents:
1. 11408262 - Mobile fracking pump trailer
2. 10794166 - Electric hydraulic fracturing system