Average Co-Inventor Count = 2.71
ph-index = 8
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. S.p.m. Flow Control, Inc. (7 from 117 patents)
2. Spm Oil & Gas Inc. (6 from 94 patents)
13 patents:
1. 12410869 - Two-pin clapper check valve
2. 12320434 - Stabilized check valve
3. 11879557 - Clapper check valve assembly
4. 11421504 - Hydraulic fracturing system, apparatus, and method
5. 11365819 - Clapper valve
6. 11149514 - Hydraulic fracturing system, apparatus, and method
7. 10808488 - Hydraulic fracturing system, apparatus, and method
8. 10753490 - Clapper valve
9. 10526862 - Hydraulic fracturing system, apparatus, and method
10. 10197172 - Clapper valve
11. D651591 - Combination RFID holder and RFID tag
12. D651592 - RFID holder
13. D651593 - RFID holder