Average Co-Inventor Count = 14.01
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. Weatherford/lamb, Inc. (4 from 1,209 patents)
4 patents:
1. 8127868 - Apparatus and methods for drilling a wellbore using casing
2. 8042616 - Apparatus and methods for drilling a wellbore using casing
3. 7823660 - Apparatus and methods for drilling a wellbore using casing
4. 7334650 - Apparatus and methods for drilling a wellbore using casing