Assignee
SPECTRA PHYSICS LASERPLANE INC
US·22 granted patents·1,249 citations·filing 1990–1994
Top patents by PatentIndex Score
22 records- 0197US5287627AAutomatic plumb and level tool with acoustic measuring capabilitySPECTRA PHYSICS LASERPLANE INC·Filed 1992·Granted Feb 22, 1994·116 cites·19 claims
- 0296US5375663AEarthmoving apparatus and method for grading land providing continuous resurveyingSPECTRA PHYSICS LASERPLANE INC·Filed 1993·Granted Dec 27, 1994·190 cites·18 claims
- 0395US5182863AAutomatic plumb and level tool with acoustic measuring capabilitySPECTRA PHYSICS LASERPLANE INC·Filed 1991·Granted Feb 2, 1993·102 cites·12 claims
- 0494US5334987AAgricultural aircraft control system using the global positioning systemSPECTRA PHYSICS LASERPLANE INC·Filed 1993·Granted Aug 2, 1994·201 cites·19 claims
- 0584US5078215AMethod and apparatus for controlling the slope of a blade on a motorgraderSPECTRA PHYSICS LASERPLANE INC·Filed 1990·Granted Jan 7, 1992·58 cites·21 claims
- 0683US5479431ASolid-state laser with active etalon and method thereforSPECTRA PHYSICS LASERPLANE INC·Filed 1994·Granted Dec 26, 1995·49 cites·16 claims
- 0782US5076690AComputer aided positioning system and methodSPECTRA PHYSICS LASERPLANE INC·Filed 1990·Granted Dec 31, 1991·79 cites·15 claims
- 0881US5144486ALaser beam apparatus for providing multiple reference beamsSPECTRA PHYSICS LASERPLANE INC·Filed 1990·Granted Sep 1, 1992·62 cites·10 claims
- 0980US5440574ASolid-state laserSPECTRA PHYSICS LASERPLANE INC·Filed 1994·Granted Aug 8, 1995·46 cites·20 claims
- 1076US5095629ALaser beam targetSPECTRA PHYSICS LASERPLANE INC·Filed 1991·Granted Mar 17, 1992·42 cites·24 claims
- 1174US5450429AEfficient linear frequency doubled solid-state laserSPECTRA PHYSICS LASERPLANE INC·Filed 1994·Granted Sep 12, 1995·33 cites·25 claims
- 1272US5257279AAdjustable focus technique and apparatus using a moveable weak lensSPECTRA PHYSICS LASERPLANE INC·Filed 1992·Granted Oct 26, 1993·35 cites·24 claims
- 1372US5107932AMethod and apparatus for controlling the blade of a motorgraderSPECTRA PHYSICS LASERPLANE INC·Filed 1991·Granted Apr 28, 1992·38 cites·21 claims
- 1471US5420876AGadolinium vanadate laserSPECTRA PHYSICS LASERPLANE INC·Filed 1994·Granted May 30, 1995·30 cites·17 claims
- 1571US5225928AFocus compensating lens for use in extreme temperaturesSPECTRA PHYSICS LASERPLANE INC·Filed 1991·Granted Jul 6, 1993·40 cites·20 claims
- 1662US5301005AMethod and apparatus for determining the position of a retroreflective elementSPECTRA PHYSICS LASERPLANE INC·Filed 1993·Granted Apr 5, 1994·42 cites·23 claims
- 1758US5465493APipe alignment apparatus and method using green lightSPECTRA PHYSICS LASERPLANE INC·Filed 1994·Granted Nov 14, 1995·19 cites·20 claims
- 1857US5426507ALaser-based pipe alignment device and methodSPECTRA PHYSICS LASERPLANE INC·Filed 1993·Granted Jun 20, 1995·17 cites·22 claims
- 1947US5335244ATechnique and apparatus using a moveable weak lensSPECTRA PHYSICS LASERPLANE INC·Filed 1993·Granted Aug 2, 1994·12 cites·20 claims
- 2047US5166831ALight beam deflecting apparatus including a fluidSPECTRA PHYSICS LASERPLANE INC·Filed 1991·Granted Nov 24, 1992·14 cites·15 claims
- 2145US5142963ALoad referenced pressure reducing valveSPECTRA PHYSICS LASERPLANE INC·Filed 1991·Granted Sep 1, 1992·13 cites·13 claims
- 2237US5227864ASystem for leveling workpiecesSPECTRA PHYSICS LASERPLANE INC·Filed 1991·Granted Jul 13, 1993·11 cites·19 claims
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