Average Co-Inventor Count = 1.50
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. C-tech Energy Services, Inc. (2 from 4 patents)
2. C-tech Oilwell Technologies Inc. (2 from 2 patents)
3. Other (1 from 832,812 patents)
5 patents:
1. 8056639 - Well string injection system and method
2. 7383879 - Well string injection system and method
3. 7318482 - Balanced continuous well string injection unit
4. 7032676 - Well string injection system and method
5. 6575241 - Downhole communication apparatus