Testo AG
67Patents
38Active
67Granted
50Portfolio score
Filing activity: Mar 18, 1994 → Aug 8, 2016 · 18 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6068119A | Watertight protective device for holding a measuring or display device | Electricity | 323 | Expired |
| US6665174B1 | Control and display device | Physics | 168 | Expired |
| US6634494B1 | Watertight protective device for holding a measuring or display device | Electricity | 81 | Expired |
| US6839238B2 | Module for measuring purposes | Emerging Cross-Sectional Technologies | 60 | Expired |
| US8476590B2 | Thermal imaging camera for taking thermographic images | Electricity | 47 | Active |
| USD400808S | Measuring instrument | General | 37 | Expired |
| US5569838A | Process and device for measuring a gas medium with a chemical sensor | Emerging Cross-Sectional Technologies | 27 | Expired |
| USD718161S1 | Portable measurement device | General | 18 | Active |
| US7523006B2 | Measurement sensor assembly and method for measuring the quality of a fluid | Physics | 11 | Expired |
| US8247770B2 | Thermal imaging camera and method for the determination of the lens parameters of an IR interchangeable lens of a thermal imaging camera | Physics | 11 | Active |
| USD421927S | Measuring instrument | General | 11 | Expired |
| US5571947A | Measuring assembly for studying gaseous media | Physics | 11 | Expired |
| US7064816B2 | Refractometer | Physics | 10 | Expired |
| USD399768S | Measuring instrument | General | 10 | Expired |
| US5733436A | Method for determining the state of an electrochemical gas sensor | Physics | 8 | Expired |
| US7652490B2 | Measuring device for measuring the state of oils or fats | Physics | 7 | Expired |
| US7720635B2 | Determination of the connected heating load of a building | Physics | 7 | Active |
| US8287182B2 | Method for testing a frying oil tester | Physics | 6 | Active |
| US8410441B2 | Thermal imaging camera for taking thermographic images | Electricity | 6 | Active |
| US7719289B2 | Measuring device for measuring the state of oils or fats | Physics | 6 | Active |
| US9453746B2 | Volumetric-flow measuring apparatus having a foldable flow straightener | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US5847263A | Method and device for determining the moisture content of a gas stream | Physics | 5 | Expired |
| US8079256B2 | Gas sensor and method for its production | Emerging Cross-Sectional Technologies | 5 | Active |
| US7798018B2 | Measuring arrangement for flow measurement in a channel | Physics | 5 | Active |
| US7730759B2 | Method and device for calibrating a humidity sensor and sensor arrangement having humidity sensor capable of calibration | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.