Average Co-Inventor Count = 3.43
ph-index = 3
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. Weatherford/lamb, Inc. (4 from 1,209 patents)
4 patents:
1. 8075813 - Tubing expansion
2. 7144243 - Tubing expansion
3. 7063149 - Tubing expansion with an apparatus that cycles between different diameter configurations
4. 6695065 - Tubing expansion