Erwin Sick GmbH Optik-Elektronik

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B60T VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL 172
 
  
 
B62D MOTOR VEHICLES; TRAILERS 190
 
  
 
G06K RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS 1197
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 176

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5543997 Safety switching system for a working apparatusDec 15, 93Aug 06, 96[H02H]
5486691 Monitoring apparatus in machinesOct 05, 93Jan 23, 96[B60T, B62D]
5481096 Bar code reader and method for its operationOct 20, 94Jan 02, 96[G06K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5569900 Method and optical scanning apparatus for the identification of a code consisting of sequential light and dark fieldsExpiredJul 11, 94Oct 29, 96[G06K]
5530539 Apparatus for measuring the transit time of electromagnetic wavesExpiredFeb 10, 94Jun 25, 96[G01C, G01S]
5418409 Comparator circuit for triggering a switching process when a variable measurement signal passes through a switching thresholdExpiredJun 24, 93May 23, 95[H03K]
5416316 Optical sensor arrangement for presence detection with variable pulse repetition frequencyExpiredJan 10, 94May 16, 95[G01V]
5341029 Method for supervising a switchExpiredDec 13, 90Aug 23, 94[G08B, G01R]
5298736 Mirror collimator having a large aperture ratioExpiredJul 07, 92Mar 29, 94[H01J]
5250801 Optical sensor for detecting articles in a monitored region and method for operating the sameExpiredJul 02, 92Oct 05, 93[G01N]
5180922 Distance measuring apparatus with phase detectionExpiredJan 22, 91Jan 19, 93[G01N, G01C]
5130532 Light barrier grid with electrically decoupled emitters and detectors which are operatable in synchronismExpiredSep 13, 90Jul 14, 92[G01V]
5095214 Optical hole seeking apparatus having dual spaced laser scannersExpiredNov 16, 88Mar 10, 92[G01N]
5080457 Apparatus for generating a light curtainExpiredJul 10, 90Jan 14, 92[G02B]
5079434 Optical scanning appartaus for seeking faults on moving material websExpiredAug 01, 90Jan 07, 92[G01N]
5013153 Interferometric gas component measuring apparatus for small gas moleculesExpiredJul 20, 89May 07, 91[G01J, G01B]
5008530 Autocollimation light curtainExpiredDec 07, 87Apr 16, 91[G08B, G01V]
4967074 Scanner for the detection of bar codes on articlesExpiredAug 19, 88Oct 30, 90[H01J]
4938601 Optical web monitoring device with row cameras with directed illuminationExpiredMar 18, 88Jul 03, 90[G01N]
4924086 Optical scanning apparatus for detecting faults on a surfaceExpiredOct 28, 88May 08, 90[G01N]
4904877 Optical scanning apparatus for detecting faults in transparent material wherein the plane of incident light is arranged at the breuster angle to the normal to the surfaceExpiredAug 19, 88Feb 27, 90[G01N]
4900153 Optical surface inspection apparatusExpiredOct 06, 88Feb 13, 90[G01N]
4899041 Light sensor for detecting an object in a certain distanceExpiredSep 02, 88Feb 06, 90[G01C]

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