Average Co-Inventor Count = 2.00
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. Halliburton Energy Services, Inc. (2 from 11,795 patents)
2 patents:
1. 8162047 - Reverse-circulation cementing of surface casing
2. 7654324 - Reverse-circulation cementing of surface casing