| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | China | 5 | |
| #3 | Republic of Korea | 5 | |
| #4 | Singapore | 4 | |
| #5 | EPO (European Patent Office) | 3 | |
| #6 | Hong Kong | 2 | |
| #7 | India | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Medical technology |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Venting or aerating devices | |
| #3 | Unspecified technologies | |
| #4 | Implantable devices | |
| #5 | Servomotors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Deocampo Hernani G | 15 |
| #2 | Madell Dean | 12 |
| #3 | Hernani G Deocampo | 9 |
| #4 | Lam Dennis D | 7 |
| #5 | Dean Madell | 6 |
| #6 | Horvath Balazs | 5 |
| #7 | Dennis D Lam | 3 |
| #8 | Jones Robert Y | 3 |
| #9 | Robert Y Jones | 2 |
| #10 | Knight Ricky D | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2017102078A1 | Hydraulic and programmable hydra seal gate valve and remotely operated fracturing stack | |
| US2015144356A1 | Spherical-annular blowout preventer having a plurality of pistons | |
| US2016084031A1 | Multi-stage blowout preventer and method of using same | |
| US2015144813A1 | Spherical-annular blowout preventer having a plurality of pistons | |
| CN103982668A | Gate valve | |
| US2015007718A1 | Hydraulic actuator system and apparatus | |
| US2014217320A1 | Gate valve |