| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | WIPO (World Intellectual Property Organization) | 4 | |
| #3 | Canada | 3 | |
| #4 | China | 2 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | Russian Federation | 2 | |
| #7 | Argentina | 1 | |
| #8 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Smolka Robert Steve | 19 |
| #2 | Graf Robert James | 19 |
| #3 | Robert James Graf | 1 |
| #4 | Robert Steve Smolka | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2017124171A1 | Multistage fracturing system with electronic counting system | |
| US2017211351A1 | Multistage fracturing system with electronic counting system | |
| WO2015149169A1 | Dart-initiated multistage high pressure fracturing system | |
| EP3097257A1 | Multistage high pressure fracturing system with counting system |