Average Co-Inventor Count = 5.00
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. Petrolphysics Operators (3 from 4 patents)
2. Other (1 from 832,812 patents)
4 patents:
1. 5035285 - Gravel packing system for a production radial tube
2. 4974672 - Gravel packing system for a production radial tube
3. 4865128 - Gravel packing system for a production radial tube
4. 4750561 - Gravel packing system for a production radial tube