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Helsinki, Finland

Vaisala Oy

USPTO Granted Patents = 73

Trademarks = 8

Forward Citations = 1,600

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53 inventors (with patents filed for the assignee):

Ari Lehto (16 out of 21 patents)

Heikki T Kuisma (10 out of 52 patents)

Lars Stormbom (10 out of 14 patents)

4. Jorma Ponkala (7 out of 7 patents)

5. Martti Blomberg (6 out of 14 patents)

6. Veijo Antikainen (5 out of 5 patents)

7. Tapani Ryhänen (4 out of 24 patents)

8. Ari Paukkunen (4 out of 5 patents)

9. Heikki Turtiainen (4 out of 5 patents)

10. Matti Lyyra (4 out of 6 patents)

11. Osmo Reittu (4 out of 4 patents)

12. Markku Orpana (4 out of 5 patents)

13. Henry Andersson (3 out of 6 patents)

14. Altti Torkkeli (3 out of 4 patents)

15. Simo Tammela (3 out of 5 patents)

Core Competencies:

Gas Sensors

Temperature Sensors

Visibility Measurement

NDIR Calibration

Fabry-Perot Interferometer

Impedance Detectors

Humidity Measurement

Meteorological Sensors

Dewpoint Measurement

Capacitive Transducers

Microporous Electrodes

GPS Positioning

73 patents: Sort by Forward Citations

1. 5987963 - Method of improving the selectivity of a polymer-film gas sensor and a (1999-11-23),

2. 5954430 - Method and temperature sensor structure for elimination of radiation (1999-09-21),

3. 5880836 - Apparatus and method for measuring visibility and present weather (1999-03-09),

4. 5850354 - Calibration method for NDIR equipment and calibration apparatus (1998-12-15),

5. 5835216 - Method of controlling a short-etalon fabry-perot interferometer used in (1998-11-10),

6. 5827438 - Electrically modulatable thermal radiant source with specific filament (1998-10-27),

7. 5821898 - Codeless GPS positioning method and apparatus for such codeless (1998-10-13),

8. 5818586 - Miniaturized fabry-perot spectrometer for optical analysis (1998-10-06),

9. 5801647 - Method and apparatus for measuring road surface conditions (1998-09-01),

10. 5750903 - Method of linearizing a flow velocity sensor, a linearized flow velocity (1998-05-12),

11. 5740601 - Method of manufacturing an impedance detector (1998-04-21),

12. 5679902 - Surface-micromachined symmetrical differential pressure sensor with (1997-10-21),

13. 5656781 - Capacitive pressure transducer structure with a sealed vacuum chamber (1997-08-12),

14. 5646729 - Single-channel gas concentration measurement method and apparatus using (1997-07-08),

15. 5644676 - Thermal radiant source with filament encapsulated in protective film (1997-07-01),

Vaisala Oy is a global leader in environmental and industrial measurement. Their innovative solutions provide accurate and reliable measurements for a wide range of industries in areas such as weather, environmental monitoring, and controlled environments. With over 80 years of experience, Vaisala is trusted by customers worldwide for their high-quality products and expertise in measurement technology.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

73 Patents

#19 in Helsinki

#48 in Finland

#9,819 in the World

Helsinki, Finland

Vaisala Oy

Forward Citations = 1,600

53 inventors:

Ari Lehto (16 out of 21 patents)

Heikki T Kuisma (10 out of 52 patents)

Lars Stormbom (10 out of 14 patents)

4. Jorma Ponkala (7 out of 7 patents)

5. Martti Blomberg (6 out of 14 patents)

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