Average Co-Inventor Count = 5.00
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. (5 from 1,209 patents)
5 patents:
1. 7487831 - Downhole surge pressure reduction and filtering apparatus
2. 7270181 - Downhole surge pressure reduction and filtering apparatus
3. 6966375 - Downhole surge pressure reduction and filtering apparatus
4. 6755252 - Downhole surge pressure reduction and filtering apparatus
5. 6571869 - Downhole surge pressure reduction and filtering apparatus