Average Co-Inventor Count = 4.44
ph-index = 4
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. (4 from 11,771 patents)
4 patents:
1. 6979366 - Methods of cementing pipe in well bores and low density cement compositions therefor
2. 6641660 - Stable well cementing methods and compositions
3. 6516883 - Methods of cementing pipe in well bores and low density cement compositions therefor
4. 6516884 - Stable well cementing methods and compositions