Average Co-Inventor Count = 2.57
ph-index = 6
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 Company (6 from 1,479 patents)
6 patents:
1. 4466837 - Liquid water loss reducing additives for cement slurries
2. 4433731 - Liquid water loss reducing additives for cement slurries
3. 4234344 - Lightweight cement and method of cementing therewith
4. 4210206 - High temperature well treating with crosslinked gelled solutions
5. 4033415 - Methods for fracturing well formations
6. 4021355 - Compositions for fracturing well formations