VAISALA OY

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Technologies

Intl Class Technology # of Patents Rank
 
 
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 6132
 
 
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS475
 
 
 
G01W METEOROLOGY 38
 
 
 
G01L MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE 242
 
 
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 246
 
 
 
H01K ELECTRIC INCANDESCENT LAMPS 220
 
 
 
B64B LIGHTER-THAN-AIR AIRCRAFT 18
 
 
 
G01C MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY 164
 
 
 
G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR 142
 
 
 
G01F MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME 145

Top Patents (by citation)

Patent # Title Filing Date Issue Date Intl Class Cited #
5,646,729 Single-channel gas concentration measurement method and apparatus using a short-resonator Fabry-Perot interferometerDec 18, 95Jul 08, 97[G02B, G01B]113
5,561,523 Electrically tunable fabry-perot interferometer produced by surface micromechanical techniques for use in optical material analysisFeb 10, 95Oct 01, 96[G01B]112
5,644,676 Thermal radiant source with filament encapsulated in protective filmJun 23, 95Jul 01, 97[H01K]89
5,801,647 Method and apparatus for measuring road surface conditionsSep 06, 96Sep 01, 98[G08B]66
5,589,689 Infrared detector with Fabry-Perot interferometerJul 07, 95Dec 31, 96[G01J]42
5,818,586 Miniaturized fabry-perot spectrometer for optical analysisOct 31, 95Oct 06, 98[G01B]26
5,483,414 Electrical impedance detector for measurement of physical quantities, in particular of temperatureMar 30, 93Jan 09, 96[H01G]24
5,827,438 Electrically modulatable thermal radiant source with specific filamentNov 22, 96Oct 27, 98[H05D]18
5,500,569 Electrically modulatable thermal radiant source and method for manufacturing the sameMar 31, 94Mar 19, 96[H01K]17
5,835,216 Method of controlling a short-etalon fabry-perot interferometer used in an NDIR mearsurement apparatusJul 05, 96Nov 10, 98[G01B]16

Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5,835,216 Method of controlling a short-etalon fabry-perot interferometer used in an NDIR mearsurement apparatusJul 05, 96Nov 10, 98[G01B]
5,827,438 Electrically modulatable thermal radiant source with specific filamentNov 22, 96Oct 27, 98[H05D]
5,818,586 Miniaturized fabry-perot spectrometer for optical analysisOct 31, 95Oct 06, 98[G01B]
5,801,647 Method and apparatus for measuring road surface conditionsSep 06, 96Sep 01, 98[G08B]
5,750,903 Method of linearizing a flow velocity sensor, a linearized flow velocity measurement apparatus and systemDec 21, 95May 12, 98[G01F]
5,656,781 Capacitive pressure transducer structure with a sealed vacuum chamber formed by two bonded silicon wafersApr 30, 96Aug 12, 97[G01L]
5,646,729 Single-channel gas concentration measurement method and apparatus using a short-resonator Fabry-Perot interferometerDec 18, 95Jul 08, 97[G02B, G01B]
5,644,676 Thermal radiant source with filament encapsulated in protective filmJun 23, 95Jul 01, 97[H01K]
5,641,911 Method and apparatus for feedback-control of an asymmetric differential pressure transducerOct 04, 94Jun 24, 97[G01L]
5,631,418 Electrically detected impedance detector for the measurement of physical quantities, in particular of temperature or humidity, and process for the manufacture of said detectorsSep 27, 94May 20, 97[G01D, H01G, G01K]

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Top Inventors for This Owner

Inventor Name Address # of Patent/Pub
Lehto Ari
Helsinki, FI
17
Stormbom Lars
Vantaa, FI
10
Ponkala Jorma
Helsinki, FI
7
Blomberg Martti
Vantaa, FI
6
Kuisma Heikki
Helsinki, FI
6
Antikainen Veijo
Vantaa, FI
5
Kuisma Heikki T
Helsinki, FI
4
Orpana Markku
Espoo, FI
4
Paukkunen Ari
Vantaa, FI
4
Reittu Osmo
Vantaa, FI
4