| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | WIPO (World Intellectual Property Organization) | 4 | |
| #3 | China | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Canada | 1 | |
| #6 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Measuring volume | |
| #2 | Radio navigation | |
| #3 | Analysing materials | |
| #4 | Unspecified technologies | |
| #5 | Special measuring |
| # | Name | Total Patents |
|---|---|---|
| #1 | Carter Larry Elvert | 6 |
| #2 | Rafferty Michael Joseph | 6 |
| #3 | Ehlert Michael Richard | 6 |
| #4 | Carter Larry | 5 |
| #5 | Haynie Carl R | 4 |
| #6 | Wilson Jeffrey D | 3 |
| #7 | Mcgeary William L | 2 |
| #8 | Rauchwerger George P | 2 |
| #9 | Larry Carter | 1 |
| #10 | Wilson Jeffrey | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2019368915A1 | Ultrasonic level sensor with sound trap | |
| US2017292870A1 | Ultrasonic level sensor with reflectors | |
| US2005072227A1 | Depth determining system | |
| US5822274A | Method and apparatus for acoustically measuring the level of liquid in a tank | |
| US5895848A | Apparatus and method for level sensing in a container | |
| US5546005A | Guarded capacitance probe and related measurement circuit | |
| US5553479A | Threshold level calibration method and apparatus |