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Lenzkirch, Germany

Testo Ag

USPTO Granted Patents = 51

EPO Patents = 20

Trademarks = 10

Forward Citations = 483

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82 inventors (with patents filed for the assignee):

Andreas Derr (14 out of 16 patents)

Martin Stratmann (11 out of 11 patents)

Patrick Zahn (10 out of 11 patents)

4. Jan-Friso Evers-Senne (5 out of 5 patents)

5. Martin Rombach (5 out of 7 patents)

6. Matthias Schmieder (5 out of 5 patents)

7. Andreas Messerschmid (4 out of 4 patents)

8. Mike Muhl (4 out of 5 patents)

9. Juergen Hall (4 out of 4 patents)

10. Markus Langenbacher (4 out of 4 patents)

11. Knut Hoyer (3 out of 7 patents)

12. Simon Brugger (2 out of 6 patents)

13. Ralf Stich (2 out of 3 patents)

14. Dirk Gopfert (2 out of 2 patents)

15. Hellen Altendorf (2 out of 2 patents)

Core Competencies:

Contactless Electric Current Measurement

3D Imaging

Temperature Measurement

Deep-Frying Monitoring

Gas Sensing

Thermal Imaging Cameras

Humidity Sensor Calibration

Moisture Content Determination

Volumetric Flow Measurement

Aerosol Characterization

Soot Number Determination

Image Processing

51 patents: Sort by Forward Citations

1. 10557872 - Measuring arrangement and method for contactless electric current measurement (2020-02-11),

2. 10176628 - Method for creating a 3D representation and corresponding image recording apparatus (2019-01-08),

3. 10157474 - 3D recording device, method for producing a 3D image, and method for setting up a 3D recording device (2018-12-18),

4. 10156591 - Current meter (2018-12-18),

5. 9945829 - Deep-frying device, portable deep-frying oil measuring device, deep-frying device set and method for monitoring a deep-frying device (2018-04-17),

6. 9857232 - Device for non-contact temperature measurement and temperature measurement method (2018-01-02),

7. 9767855 - Method for creating a 3D model of an object and corresponding model calculation device and model calculation device (2017-09-19),

8. D787959 - Measuring instrument (2017-05-30),

9. 9667890 - Method for visualizing spatially-resolved measurement results and corresponding measuring arrangement (2017-05-30),

10. 9658115 - Temperature measuring device, temperature measuring device set and method for configuring a temperature measuring device that can be operated with a thermocouple (2017-05-23),

11. 9534991 - Handheld sampling-removal head, analysis arrangement and method for characterizing an aerosol (2017-01-03),

12. 9518911 - Impactor and method for characterizing a carrier gas enriched with suspended particles (2016-12-13),

13. 9453746 - Volumetric-flow measuring apparatus having a foldable flow straightener (2016-09-27),

14. 9386238 - Method for preparing images in non-visible spectral ranges, and corresponding camera and measuring arrangement (2016-07-05),

15. 9383262 - Imaging inspection device (2016-07-05),

Testo AG is a leading manufacturer and provider of high-precision measuring instruments and solutions for numerous industries. With over 60 years of experience, Testo offers reliable and innovative solutions for temperature, humidity, pressure, and air-quality measurement. As a global company, Testo serves customers in various sectors, including HVAC/R, food safety, pharmaceuticals, and many more.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

51 Patents

#1 in Lenzkirch

#1,064 in Germany

#13,365 in the World

Lenzkirch, Germany

Testo Ag

Forward Citations = 483

82 inventors:

Andreas Derr (14 out of 16 patents)

Martin Stratmann (11 out of 11 patents)

Patrick Zahn (10 out of 11 patents)

4. Jan-Friso Evers-Senne (5 out of 5 patents)

5. Martin Rombach (5 out of 7 patents)

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