Average Co-Inventor Count = 3.00
ph-index = 2
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. Western Well Tool, Inc. (2 from 47 patents)
2 patents:
1. 7055631 - Drill pipe protector
2. 6739415 - Drill pipe protector