| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 3 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | United Kingdom | 3 | |
| #5 | Australia | 2 | |
| #6 | Belgium | 2 | |
| #7 | Switzerland | 2 | |
| #8 | France | 2 | |
| #9 | Italy | 2 | |
| #10 | Japan | 2 | |
| #11 | Sweden | 2 | |
| #12 | South Africa | 2 | |
| #13 | China | 1 | |
| #14 | Germany | 1 | |
| #15 | Israel | 1 | |
| #16 | Republic of Korea | 1 | |
| #17 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Optics | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Measuring volume | |
| #2 | Special measuring | |
| #3 | Measuring force, work and fluid pressure | |
| #4 | Optical systems | |
| #5 | Pipes | |
| #6 | Measuring temperature |
| # | Name | Total Patents |
|---|---|---|
| #1 | Parkhurst Larry E | 8 |
| #2 | Meadows Michael R | 8 |
| #3 | Alston Norman A | 7 |
| #4 | Kalin Horst W | 6 |
| #5 | Coleman Darrel F | 4 |
| #6 | Bond Morris M | 4 |
| #7 | Coleman Darrel Francis | 4 |
| #8 | Bond Morris Melvin | 4 |
| #9 | Harbaugh James B | 3 |
| #10 | Brooks Edward F | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US4694159A | Optic sensor with reference and detecting optic circuits | |
| US4717159A | Method and apparatus for seating and sealing a pitot tube type flow meter in a pipe | |
| US4645242A | High pressure mounting with positive lock | |
| US4633713A | Insert/retract mechanism for flow measurement probes | |
| US4559836A | Pitot type flow measuring device and method of mounting | |
| US4631401A | Optic sensors | |
| US4154100A | Method and apparatus for stabilizing the flow coefficient for pitot-type flowmeters with a downstream-facing port | |
| US3992655A | Electronic meter signalling device | |
| US3446076A | Manometric gauges |