Average Co-Inventor Count = 1.67
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. Other (4 from 832,812 patents)
2. Phoenix Petroleum Services Ltd. (2 from 4 patents)
6 patents:
1. 5579841 - Plugs for well logging operations
2. 5213159 - Method and apparatus for monitoring well fluid parameters
3. 5167282 - Apparatus and method for detonating well perforators
4. 5099919 - Plug for well logging operations
5. 4924952 - Detonating heads
6. 4898244 - Installation of downhole pumps in wells