| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | WIPO (World Intellectual Property Organization) | 4 | |
| #3 | Canada | 3 | |
| #4 | China | 1 | |
| #5 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Civil engineering | |
| #3 | Mechanical elements | |
| #4 | Macromolecular chemistry and polymers | |
| #5 | Machine tools | |
| #6 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Earth drilling | |
| #3 | Macromolecular compounds compositions | |
| #4 | Pistons and sealings | |
| #5 | Venting or aerating devices | |
| #6 | Machines | |
| #7 | Metal-working | |
| #8 | Motor vehicles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kerr David | 6 |
| #2 | Haas Ian | 6 |
| #3 | Wang Jianke | 5 |
| #4 | Zhai Xiaonan | 4 |
| #5 | Kleypas Paul | 3 |
| #6 | Johnson Daniel B | 3 |
| #7 | Hass Ian | 3 |
| #8 | Johnson Daniel Brent | 2 |
| #9 | Embry Jr | 2 |
| #10 | Wise Leslie | 2 |
| Publication | Filing date | Title |
|---|---|---|
| CA3068285A1 | Variable stroke pump | |
| US2019316685A1 | Pump valve with seal retaining structure | |
| CA3051523A1 | Fluid end with removable dual-valve cartridge | |
| WO2017192359A1 | Self-rotating shoe for walking rig | |
| US2018266413A1 | Access pump casing | |
| US2017058888A1 | Pump casing | |
| US2015377232A1 | Piston with a heat exchanger |