Assignee
KERN & CO AG
16 granted patents·437 citations·filing 1975–1990
Top patents by PatentIndex Score
16 records- 0187US4681433AMethod and apparatus for measuring relative positionKERN & CO AG·Filed 1981·Granted Jul 21, 1987·67 cites·6 claims
- 0285US4877324AOptical sighting device with illuminated aiming markKERN & CO AG·Filed 1987·Granted Oct 31, 1989·69 cites·8 claims
- 0385US4136955AApparatus for correcting theodolitesKERN & CO AG·Filed 1976·Granted Jan 30, 1979·44 cites·9 claims
- 0482US4482219AHigh speed catadioptric objective lens systemKERN & CO AG·Filed 1980·Granted Nov 13, 1984·37 cites·5 claims
- 0573US4553836AMethod and apparatus for electrooptical distance measurementKERN & CO AG·Filed 1982·Granted Nov 19, 1985·28 cites·7 claims
- 0670US4274736AMethod and apparatus for electrooptical distance measurementKERN & CO AG·Filed 1979·Granted Jun 23, 1981·33 cites·17 claims
- 0769US4273425AHigh speed catadioptric objective lens systemKERN & CO AG·Filed 1978·Granted Jun 16, 1981·21 cites·4 claims
- 0868US4916324AMethod and apparatus for electro-optical distance measurementKERN & CO AG·Filed 1988·Granted Apr 10, 1990·27 cites·14 claims
- 0967US5003187AMethod and apparatus for surveying the surface of an object by projection of fringe patternsKERN & CO AG·Filed 1990·Granted Mar 26, 1991·34 cites·19 claims
- 1063US4537464AInfrared objective system lensKERN & CO AG·Filed 1983·Granted Aug 27, 1985·30 cites·2 claims
- 1161US4003665AMethod for the manufacture of writing instrumentsKERN & CO AG·Filed 1975·Granted Jan 18, 1977·22 cites·14 claims
- 1250US4482118AAdjusting base for geodetic instrumentsKERN & CO AG·Filed 1982·Granted Nov 13, 1984·10 cites·7 claims
- 1340US4759623AElectrooptical distance measuring apparatusKERN & CO AG·Filed 1986·Granted Jul 26, 1988·9 cites·8 claims
- 1431US4259010AApparatus for measuring and evaluating a picture plateKERN & CO AG·Filed 1978·Granted Mar 31, 1981·2 cites·14 claims
- 1530US4957375AApparatus for guiding a shaftKERN & CO AG·Filed 1989·Granted Sep 18, 1990·0 cites·10 claims
- 1621US4352556AReflector for electrooptical distance measurementKERN & CO AG·Filed 1980·Granted Oct 5, 1982·4 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →