| Patents for G01C 5 - Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels (3,586) |
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| 01/08/1997 | CN1139752A Automatic inclination angle compensator |
| 12/31/1996 | US5589939 Laser surveying system |
| 12/27/1996 | EP0750238A1 Integrated ground collision avoidance system |
| 12/17/1996 | US5585791 GPWS autopilot monitor |
| 12/10/1996 | US5583685 Marking apparatus having feedback-controlled rotational laser beam |
| 12/04/1996 | EP0745915A2 Electronic watch having a water depth measuring function |
| 12/03/1996 | CA2089662C Spatial positioning system |
| 11/07/1996 | DE19616832A1 Focussing system for surveyor's level |
| 10/30/1996 | EP0543954B1 Spatial positioning system |
| 10/29/1996 | CA2018342C Hypsometer having controlled heating, particularly for use in metrological radio-sondes |
| 10/23/1996 | CN1133969A Laser survey instrument |
| 09/25/1996 | EP0733879A1 Altitude measuring device |
| 09/21/1996 | CA2171992A1 Altitude measuring device |
| 09/18/1996 | EP0732676A1 Apparatus for aircraft collision avoidance particularly with the ground |
| 09/18/1996 | EP0732565A1 Measuring apparatus for determining the relative height of an object |
| 09/18/1996 | CA2171789A1 Collision avoidance device for aircraft, especially with the ground |
| 08/21/1996 | EP0727642A1 Laser survey instrument |
| 08/20/1996 | US5547327 Method and apparatus for continuously determining the inclination and draft of a waterborne floating vessel to enable automatic loading of the vessel |
| 08/15/1996 | WO1996024820A1 Levelling instrument |
| 07/16/1996 | US5537200 Electronic leveling apparatus having a leveling staff detection function, and leveling staff used with the same |
| 07/04/1996 | DE19549048A1 Auto-internal-focussing telescope with focussing motor lens drive, for installation in e.g. automatic levelling appts. |
| 06/20/1996 | WO1996018867A1 Level difference measurement apparatus |
| 06/12/1996 | EP0715707A1 Automatic level and plumb tool |
| 06/06/1996 | WO1996017132A1 Device for marking levelling height |
| 05/21/1996 | US5519671 Electronic equipment with depth measuring function |
| 05/21/1996 | US5517869 Hydrostatic altimeter error compensation |
| 05/14/1996 | US5517023 Marking apparatus having feedback-controlled rotational laser beam |
| 05/09/1996 | DE4439606A1 Testing and demonstrating of immersion computers inside pressure vessel |
| 05/08/1996 | EP0550614B1 Accumulating altimeter with ascent/descent accumulation thresholds |
| 05/01/1996 | EP0709652A1 Method of determining the tilt angle of coded surveyor's staffs |
| 04/30/1996 | US5513001 Tilt angle automatic compensator in all directions |
| 04/25/1996 | DE4437451A1 Terrain referenced altitude correction for aircraft's altimeter |
| 04/23/1996 | US5509295 Portable self-contained moistureless density altitude measuring apparatus |
| 04/10/1996 | CN2224398Y Multi-purpose scale for measuring |
| 04/04/1996 | DE19504039C1 Automatic digital levelling device |
| 02/22/1996 | DE19527609A1 Bicycle computer for measuring average speeds and distance for touring cyclist |
| 02/14/1996 | CN1116765A Automatic angle compensator |
| 02/13/1996 | US5491485 Surveying system using radio ranging and barometric height |
| 01/31/1996 | EP0694758A1 Automatic tilt angle compensator and tilt detector |
| 01/17/1996 | CN1115038A Laser rotative irradiation apparatus having reciprocating laser scanning system |
| 01/16/1996 | US5485266 Laser beam survey instrument having a tiltable laser beam axis and tilt detectors |
| 01/04/1996 | DE4421741A1 Rail height difference measuring system for rail tracks esp. laid in underground mining |
| 12/27/1995 | EP0689109A1 Electronic appliance equipped with function of measurung water depth |
| 11/16/1995 | DE4416647A1 Data processing system for monitoring use of glider launch windlass |
| 11/02/1995 | DE4438759C1 Tip angle detection method for coded levelling beam |
| 10/26/1995 | DE4413781A1 Determining list of floating and/or immersed devices |
| 10/24/1995 | US5459933 Level position measuring method and device |
| 10/24/1995 | US5459932 Automatic level and plumb tool |
| 10/18/1995 | CN1110399A Survey instrument |
| 10/11/1995 | EP0676618A1 Automatic angle compensator |
| 10/05/1995 | DE4410614A1 Levelling, height measurement and test appts. for construction industry |
| 09/26/1995 | US5452519 Attitude sensor |
| 09/21/1995 | DE4408601A1 Apparatus for checking fall in inaccessible pipe length |
| 09/13/1995 | EP0587618B1 Attitude sensor |
| 09/13/1995 | CN1108383A Object reflector detecting apparatus |
| 09/05/1995 | US5446968 Strut height adjusting apparatus |
| 08/16/1995 | EP0659265A4 Spatial positioning system. |
| 07/18/1995 | US5434574 System for detecting an altitude of a vehicle dependent on a global positioning system |
| 07/13/1995 | WO1995018955A1 Improvements in a hydrostatic altimeter |
| 07/13/1995 | WO1995018954A1 Hydrostatic altimeter error compensation |
| 07/05/1995 | EP0661520A1 Laser surveying system |
| 07/05/1995 | EP0661519A1 Surveying instrument |
| 06/28/1995 | EP0660080A1 Hydrostatic levelling using hose |
| 06/28/1995 | EP0659265A1 Spatial positioning system |
| 06/27/1995 | US5428354 Ground proximity warning system for non-retractable landing gear aircraft |
| 06/21/1995 | EP0658742A1 Device for measuring differences in height |
| 06/13/1995 | US5423215 Self-contained heads-up visual altimeter for skydiving |
| 05/16/1995 | US5415031 Process and device for estimating the altitude of an aircraft including an inertial reference system, radio altimeters and a poller |
| 04/19/1995 | EP0537308B1 Ground proximity excessive descent rate warning instrument |
| 03/30/1995 | DE4333032A1 Arrangement for determining the position and orientation of a tunnel driving machine |
| 03/28/1995 | US5402116 Atmospheric pressure calibration systems and methods |
| 03/22/1995 | CN2192877Y Indefinite distance altitude measuring apparatus |
| 03/02/1995 | WO1995006231A1 Automatic level and plumb tool |
| 01/25/1995 | CN1097874A A device for projecting laser rays which is self-leveling and is mount mounted on a rotating base |
| 01/19/1995 | DE4339108C1 Wood-stock measurement device and method for statistical determination of the wood-stock volume of trees in forest resources |
| 01/04/1995 | EP0632251A1 Deformation monitoring system for jig tool |
| 12/28/1994 | EP0631110A1 Object reflector detecting apparatus |
| 11/30/1994 | EP0626561A1 Automatic inclination angle compensator |
| 11/29/1994 | US5367782 Level marking method and level marking apparatus |
| 10/26/1994 | CN2180971Y Two-purpose level for engineering survey |
| 10/26/1994 | CN2180970Y Multi-function tower type rule |
| 10/25/1994 | US5359326 Aircraft maneuver envelope warning system |
| 10/19/1994 | EP0233941B1 Ground proximity warning system for use with aircraft having degraded performance |
| 10/12/1994 | EP0619470A1 Device for horizontally projecting a laser beam |
| 10/05/1994 | CN2178886Y Position device of tower ruler |
| 09/20/1994 | US5349347 Method and apparatus for correcting dynamically induced errors in static pressure, airspeed and airspeed rate |
| 09/15/1994 | WO1994020886A1 Electronic appliance equipped with function of measurung water depth |
| 09/15/1994 | DE4342935A1 Device for measuring differences in height |
| 08/24/1994 | EP0611954A1 Diver's pivotal gauge boot |
| 08/18/1994 | DE4304561A1 Device for preventing aircraft from accidentally coming into contact with the ground and obstructions in the close vicinity of airports |
| 08/11/1994 | DE4303257A1 Electronic hydrostatic level |
| 08/10/1994 | CN1090641A Apparatus for compensating tilt angle automatically |
| 08/09/1994 | US5335543 Diver's pivotal gauge boot |
| 07/20/1994 | EP0606890A1 System for detecting an altitude of a vehicle dependent on a global positioning system |
| 06/23/1994 | WO1994013892A1 Gas/liquid accumulator for a level difference measuring apparatus and apparatus for level difference measurement |
| 06/23/1994 | DE4324569C1 Automatic U-tube level gauge |
| 06/01/1994 | CN1024838C Miniature projective measuring instrument |
| 05/26/1994 | WO1994011704A1 Automatic inclination angle compensator |
| 05/10/1994 | US5309645 Combination plumb or level and height setting instruments |
| 05/04/1994 | EP0595271A1 Reciprocating surveying laser |