| Patents for G01C 1 - Measuring angles (3,035) |
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| 09/03/2002 | US6445446 Surveying instrument |
| 08/21/2002 | CN2506978Y Balance type light regulation mechanism for camera of photoelectric theodolite |
| 08/14/2002 | DE10133285C1 Winkelmessgerät Angle Meter |
| 08/13/2002 | US6434508 Method of synchronized survey with computer aid |
| 08/13/2002 | US6433858 Autofocusing apparatus of a sighting telescope |
| 08/07/2002 | CN1362612A Measuring apparatus |
| 07/24/2002 | EP1224442A1 Method and apparatus for determining characteristics of a laser beam spot |
| 07/11/2002 | WO2002054169A2 A data input device |
| 07/11/2002 | CA2433791A1 A data input device |
| 07/04/2002 | US20020085193 Surveying apparatus |
| 07/03/2002 | EP1219925A2 Surveying apparatus |
| 06/25/2002 | US6411372 Geodetic instrument with laser arrangement |
| 06/12/2002 | CN2494974Y Geodetic instrument with laser centring device |
| 06/12/2002 | CN1353819A Device which follows position of sun |
| 06/04/2002 | US6400447 Differentiation of targets in optical station based on the strength of the reflected signal |
| 05/07/2002 | US6384902 Surveying apparatus comprising a height measuring device |
| 05/02/2002 | US20020051288 Surveying instrument |
| 05/02/2002 | DE10151701A1 Vermessungsinstrument Survey instrument |
| 04/10/2002 | CN2485628Y Temperature compensated focus mechanism for electro-optic theodolites |
| 03/28/2002 | WO2002025210A1 Level and/or verticality indicator using laser beams |
| 03/27/2002 | CN2483687Y Infrared aligner of theodolite |
| 03/12/2002 | US6354010 Surveying instrument |
| 03/06/2002 | EP1183548A1 Device which follows the position of the sun |
| 02/27/2002 | CN1079942C Horizontal position error correcting mechanism of electronic level gauge |
| 02/26/2002 | US6350975 Beam splitter for automatic focusing device |
| 02/07/2002 | US20020015237 Light interception structure for an automatic focus detection surveying instrument |
| 02/05/2002 | US6344639 Beam splitter for automatic focusing device |
| 01/31/2002 | WO2002008692A1 Method and device for optically measuring distance or speed |
| 01/30/2002 | EP1176389A1 Method and device for optical range or speed measurement |
| 01/17/2002 | WO2002005005A1 Autofocussing method for telescopes pertaining to surveying equipment |
| 01/17/2002 | US20020005984 Telescope for geodetic instruments, particularly for video tachymeters |
| 01/17/2002 | US20020005716 Magnetic encoder and survey instrument having magnetic encoder |
| 01/16/2002 | CN2472193Y Engineering measuring instrument with laser alignment |
| 01/15/2002 | US6339499 Beam splitter for automatic focusing device |
| 01/03/2002 | DE10033483C1 Verfahren zur Autofokussierung für Fernrohre von Vermessungsgeräten Method for autofocusing for telescopes of measuring equipment |
| 01/01/2002 | US6336062 Attitude angle sensor correcting apparatus for an artificial satellite |
| 12/27/2001 | US20010055110 Indicator for an optical instrument |
| 12/20/2001 | DE10128619A1 Magnetic incremental coder module for theodolite, has sensors arranged on magnetic drums such that phase difference of signals output by sensors satisfy preset relations |
| 12/18/2001 | US6331918 Light interception structure for an automatic focus detection surveying instrument |
| 11/27/2001 | US6324475 Method for identifying in a pre-established catalogue stars detected by a star sensor |
| 11/20/2001 | US6321120 RF therapeutic cancer apparatus and method |
| 11/13/2001 | US6317199 Indicator for an optical instrument |
| 10/31/2001 | EP1150096A2 Telescope for surveying instruments, specifically for video tachymeter |
| 10/31/2001 | DE10020986A1 Fernrohr für geodätische Geräte, insbesondere für Videotachymeter Telescope for geodetic devices, especially for video tachymeter |
| 10/31/2001 | CN2457568Y Laser ray device for surveying and mapping instrument and telescope |
| 10/30/2001 | US6310338 Solar altitude detector |
| 10/24/2001 | CN2456132Y Controlling system for preventing runaway of photoelectric transit |
| 10/17/2001 | CN2454758Y Compensation device of large-aperature newton type optical system |
| 10/11/2001 | US20010027611 Apparatus for converting an optical theodolite into a laser theodolite |
| 10/10/2001 | EP1143223A2 Apparatus for converting an optical theodolite into a laser theodolite |
| 10/05/2001 | CA2343484A1 Apparatus for converting an optical theodolite into a laser theodolite |
| 10/02/2001 | US6298302 Navigation system for providing an optimal route from traffic messages |
| 08/22/2001 | EP0764349B1 Method and apparatus for determining direction |
| 08/16/2001 | US20010014848 Navigation system for providing an optimal route from traffic messages |
| 08/14/2001 | USRE37318 Tribrach device |
| 08/09/2001 | US20010011698 Angular position sensor unit |
| 08/07/2001 | US6269580 Motor-driven focusing apparatus of a sighting telescope |
| 07/31/2001 | US6266911 Autofocusing apparatus of a sighting telescope |
| 07/18/2001 | EP0722559B1 A navigation device for a land vehicle with means for generating a multi-element anticipatory speech message, and a vehicle comprising such device |
| 07/04/2001 | CN1301952A Liquid level theodolite |
| 06/28/2001 | DE19962066A1 Angle sensor unit for steering wheel axis of vehicle; has clock disc fixed to hub of steering column axis and having grooves to engage steps formed in flange of hub over which bore in disc slides |
| 06/13/2001 | EP1106505A2 Attitude angle sensor correcting apparatus for an artificial satellite |
| 06/12/2001 | US6246056 Earth sensor |
| 06/05/2001 | US6243658 Tilt prediction for total station |
| 05/23/2001 | CN1296165A Circular type laser gyroscope and method for driving same |
| 05/16/2001 | EP1099931A2 Ring laser gyro |
| 05/11/2001 | CA2325229A1 Ring laser gyro and method for driving ring laser gyro |
| 05/08/2001 | US6229598 Electro-optic distance measuring apparatus |
| 04/26/2001 | DE10052150A1 Transit instrument for surveyor, has magnet arranged near magnetic sensor to reduce the detection errors of magnetic incremental rotary coder |
| 04/26/2001 | DE10052148A1 Surveyor's transit with magnetic incremental rotary encoder has magnetic sensors staggered to each other to form phase angle in between to detect rotational angle of magnetic rotating drum |
| 04/24/2001 | US6222678 Automatic survey instrument |
| 03/07/2001 | EP1081459A1 Tacheometer-telescope |
| 02/27/2001 | US6194694 Surveying instrument |
| 02/06/2001 | US6182372 Interpolation using digital means for range findings in a total station |
| 01/10/2001 | CN2414387Y Quasi-straight light-focusing apparatus |
| 12/28/2000 | DE19934931C1 Horizontal and vertical setting device for theodolite or tachymeter telescope uses precision horizontal and vertical setting drive lying in different planes and controlled by coaxial setting shafts |
| 12/27/2000 | CN2412200Y Sensor assembly of magnetic measuring ship gesture measuring system |
| 12/27/2000 | CN2412198Y Sextant electronic detecting and controlling device |
| 12/26/2000 | US6166808 Optical height meter, surface-inspection device provided with such a height meter, and lithographic apparatus provided with the inspection device |
| 12/20/2000 | CN2411465Y Top auto-collimation theodolite with high precision photoelectric automatic nourth searching |
| 12/19/2000 | US6163294 Time-tagging electronic distance measurement instrument measurements to serve as legal evidence of calibration |
| 12/14/2000 | DE19941638C1 Geodatic theodolite or tachometer has laser device used for determining height above ground of common intersection point of telescope optical axis, pivot axis and rotation axis |
| 12/07/2000 | WO2000073810A1 Device which follows the position of the sun |
| 11/09/2000 | DE10020978A1 Rotary encoder for surveying instrument has two sensors whose output voltage phase is offset w.r.t. each other by fraction of pi |
| 11/07/2000 | US6144021 Level having an autofocus system with controllable focusing lens group |
| 11/02/2000 | EP0888524A4 Gravity oriented laser scanner |
| 10/31/2000 | US6138367 Tilt prediction for total station |
| 10/24/2000 | US6137569 Survey instrument |
| 09/19/2000 | US6119355 Audible tilt sensor calibration |
| 09/13/2000 | CN1266178A Light source angle measurer and method thereof |
| 09/06/2000 | EP1033556A1 Three-dimensional measuring method and surveying instrument using the same |
| 08/30/2000 | EP0842395B1 Process and device for the rapid detection of the position of a target marking |
| 08/23/2000 | EP1028861A1 Solar altitude detector |
| 08/16/2000 | CN2392165Y 激光经纬仪 Laser theodolite |
| 08/02/2000 | EP1024344A1 Surveying instrument with height measuring system |
| 08/02/2000 | EP1024342A1 Automatic surveying equipment and three-dimensions measuring method |
| 06/28/2000 | EP1014111A2 Photodetecting system for surveying instrument |
| 06/21/2000 | CN2384197Y Measurer for measuring point to vertical plane distance of long distance object |
| 06/20/2000 | US6076266 Theodolite with a disengageable adjustment mechanism |
| 06/06/2000 | US6072642 Focusing lens position detection apparatus and an auto-focus surveying apparatus |