| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 23 |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Servomotors | |
| #3 | Earth drilling | |
| #4 | Pumps | |
| #5 | Chemical or physical processes | |
| #6 | Non-positive-displacement pumps | |
| #7 | Medical preparations | |
| #8 | Water treatment | |
| #9 | Specific use of cosmetics | |
| #10 | Compounding ingredients |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chen Shaotong | 21 |
| #2 | Jiang Guimei | 8 |
| #3 | Ma Yuying | 5 |
| #4 | The Designer Has Waived The Right To Be Cited | 4 |
| #5 | Ma Jinhuan | 4 |
| #6 | The Inventor Has Waived The Right To Be Cited | 2 |
| Publication | Filing date | Title |
|---|---|---|
| CN111894517A | Underground check valve | |
| CN111779846A | Butterfly valve | |
| CN111810440A | Centrifugal water pump | |
| CN111677914A | Energy-saving control device for hydraulic station | |
| CN111677876A | Gas safety valve | |
| CN111412303A | Low-torque ball valve | |
| CN111442110A | Ball valve | |
| CN111472713A | Packer | |
| CN111472714A | Packer | |
| CN111350830A | Butterfly valve | |
| CN111350833A | Butterfly valve | |
| CN111336086A | Air compressor | |
| CN111287923A | Underground grouting pump | |
| CN111271238A | Submersible pump | |
| CN111188910A | Multifunctional stop valve | |
| CN111197660A | Gate valve | |
| CN111271476A | Stop valve | |
| CN109162978A | Guide type valve | |
| CN109185253A | A kind of electromagnetic relief valve | |
| CN109139593A | Guide's unloading valve |