Average Co-Inventor Count = 12.18
ph-index = 5
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. (5 from 1,209 patents)
2. Weatherford Technology Holdings, LLC (892 patents)
5 patents:
1. 8534379 - Apparatus and methods for drilling a wellbore using casing
2. 8127868 - Apparatus and methods for drilling a wellbore using casing
3. 8042616 - Apparatus and methods for drilling a wellbore using casing
4. 7823660 - Apparatus and methods for drilling a wellbore using casing
5. 7334650 - Apparatus and methods for drilling a wellbore using casing