Assignee
IHC HOLLAND NV
NL·61 granted patents·664 citations·filing 1974–2001
Top patents by PatentIndex Score
61 records- 0190US4750748AShaft seal with flexible midportion and garter springIHC HOLLAND NV·Filed 1986·Granted Jun 14, 1988·41 cites·4 claims
- 0282US4365509ASystem and method for determining the well load of a hopper suction dredgeIHC HOLLAND NV·Filed 1981·Granted Dec 28, 1982·43 cites·11 claims
- 0380US4273343AShaft sealIHC HOLLAND NV·Filed 1979·Granted Jun 16, 1981·32 cites·7 claims
- 0475US4601349AHydraulic pile driverIHC HOLLAND NV·Filed 1983·Granted Jul 22, 1986·35 cites·5 claims
- 0575US4114901ASeal for unloading hatch of hopper barge or similar vesselIHC HOLLAND NV·Filed 1977·Granted Sep 19, 1978·25 cites·3 claims
- 0675US4102064ASwell compensator for suction dredging systemIHC HOLLAND NV·Filed 1976·Granted Jul 25, 1978·27 cites·5 claims
- 0775US4029039AMooring means, particularly for carrying out production tests for gas and oil drilling on the high seasIHC HOLLAND NV·Filed 1975·Granted Jun 14, 1977·24 cites·6 claims
- 0870US4031582AFloating structureIHC HOLLAND NV·Filed 1976·Granted Jun 28, 1977·18 cites·4 claims
- 0969US4259795ADragging type cutter head for a suction dredgerIHC HOLLAND NV·Filed 1979·Granted Apr 7, 1981·19 cites·7 claims
- 1064US4111467ARotatable coupling for a plurality of conduits, particularly for a buoyIHC HOLLAND NV·Filed 1977·Granted Sep 5, 1978·34 cites·6 claims
- 1163US4390942AControl systemIHC HOLLAND NV·Filed 1980·Granted Jun 28, 1983·24 cites·1 claims
- 1257US4362343AAxial bearingIHC HOLLAND NV·Filed 1981·Granted Dec 7, 1982·15 cites·2 claims
- 1356US4437244AMethod for sucking up soil or sludge by means of a suction hopper dredge as well as a suction dredge for applying the methodIHC HOLLAND NV·Filed 1982·Granted Mar 20, 1984·13 cites·3 claims
- 1454US4456119ADevice for elevating a liquidIHC HOLLAND NV·Filed 1981·Granted Jun 26, 1984·16 cites·8 claims
- 1552US4126298ACompensation device for a craneIHC HOLLAND NV·Filed 1977·Granted Nov 21, 1978·14 cites·3 claims
- 1651US4430812AEndless belt dredgerIHC HOLLAND NV·Filed 1982·Granted Feb 14, 1984·16 cites·12 claims
- 1750US4069785AShip of similar floating installation equipped for the assembly of apparatus and for lowering same into the waterIHC HOLLAND NV·Filed 1976·Granted Jan 24, 1978·12 cites·2 claims
- 1849US4394265AVessel in particular suction dredger provided with means for removing oil from a water surfaceIHC HOLLAND NV·Filed 1979·Granted Jul 19, 1983·16 cites·18 claims
- 1947US4381127ASealed bearingIHC HOLLAND NV·Filed 1981·Granted Apr 26, 1983·11 cites·8 claims
- 2046US4351122ASystem for controlling the position of the drag pipe of a dredgeIHC HOLLAND NV·Filed 1980·Granted Sep 28, 1982·12 cites·5 claims
- 2146US4000568ABucket dredgerIHC HOLLAND NV·Filed 1975·Granted Jan 4, 1977·12 cites·3 claims
- 2245US4097072AConduit with cardan jointIHC HOLLAND NV·Filed 1977·Granted Jun 27, 1978·12 cites·1 claims
- 2344US4302893ADigging wheel for a suction dredger vesselIHC HOLLAND NV·Filed 1980·Granted Dec 1, 1981·10 cites·8 claims
- 2443US4548147AHopper barge with bottom flaps and a suction channelIHC HOLLAND NV·Filed 1984·Granted Oct 22, 1985·12 cites·5 claims
- 2541US4255882ADragging type cutter head for a suction dredgerIHC HOLLAND NV·Filed 1979·Granted Mar 17, 1981·7 cites·8 claims
- 2639US4557832AApparatus for removing oil from waterIHC HOLLAND NV·Filed 1984·Granted Dec 10, 1985·7 cites·3 claims
- 2739US4182253ADrilling vessel with handling means for drilling pipeIHC HOLLAND NV·Filed 1978·Granted Jan 8, 1980·16 cites·2 claims
- 2838US4345388AMethod for controlling the production of a dredging apparatusIHC HOLLAND NV·Filed 1980·Granted Aug 24, 1982·7 cites·2 claims
- 2937US7036759B2Autogenous rotorIHC HOLLAND NV·Filed 2001·Granted May 2, 2006·0 cites·49 claims
- 3037US6974096B2Mill with streamlined spaceIHC HOLLAND NV·Filed 2001·Granted Dec 13, 2005·0 cites·37 claims
- 3137US5327794ADevice for driving a tool positioned on a pivotable partIHC HOLLAND NV·Filed 1992·Granted Jul 12, 1994·12 cites·5 claims
- 3237US5310287AMethod and device for driving a pile or the like into and out of the groundIHC HOLLAND NV·Filed 1992·Granted May 10, 1994·15 cites·12 claims
- 3336US4964473AMethod for driving a hydraulic submerged toolIHC HOLLAND NV·Filed 1989·Granted Oct 23, 1990·7 cites·11 claims
- 3434US4344239ADragging type head for a suction dredgerIHC HOLLAND NV·Filed 1980·Granted Aug 17, 1982·5 cites·3 claims
- 3534US4295286ASupport frame for motor, pump and suction tube of a suction dredgerIHC HOLLAND NV·Filed 1980·Granted Oct 20, 1981·10 cites·9 claims
- 3633US4597200ADetachable coupling for a suction headIHC HOLLAND NV·Filed 1984·Granted Jul 1, 1986·8 cites·6 claims
- 3731US5257593AFloating construction assembled from several partsIHC HOLLAND NV·Filed 1991·Granted Nov 2, 1993·7 cites·10 claims
- 3831US4400895ADrag head for a hopper suction dredgeIHC HOLLAND NV·Filed 1982·Granted Aug 30, 1983·3 cites·3 claims
- 3930US4374504ASuction dredger bargeIHC HOLLAND NV·Filed 1981·Granted Feb 22, 1983·4 cites·2 claims
- 4030US3938908APumpIHC HOLLAND NV·Filed 1974·Granted Feb 17, 1976·7 cites·2 claims
- 4129US4387519AMethod for controlling the position of the suction head of a dredge in relation to the bottomIHC HOLLAND NV·Filed 1981·Granted Jun 14, 1983·4 cites·1 claims
- 4228US4314660AMethod for the manufacture of axial sealing ringsIHC HOLLAND NV·Filed 1979·Granted Feb 9, 1982·0 cites·1 claims
- 4327US4559813ASystem and device for detecting the forming of depotIHC HOLLAND NV·Filed 1984·Granted Dec 24, 1985·7 cites·9 claims
- 4427US4555947AMethod and apparatus for the measurement of fluid flow velocitiesIHC HOLLAND NV·Filed 1983·Granted Dec 3, 1985·4 cites·16 claims
- 4527US4382419AFloating vessel with moon well and ice guard thereforIHC HOLLAND NV·Filed 1980·Granted May 10, 1983·6 cites·3 claims
- 4626US4701077AApparatus for withdrawing a tube or pile which has been driven into the soilIHC HOLLAND NV·Filed 1986·Granted Oct 20, 1987·2 cites·3 claims
- 4726US4531469AVessel comprising two pivotably connected hull sectionsIHC HOLLAND NV·Filed 1983·Granted Jul 30, 1985·1 cites·6 claims
- 4826US4343102AMethod for controlling the operation of a dredging apparatusIHC HOLLAND NV·Filed 1980·Granted Aug 10, 1982·1 cites·5 claims
- 4924US4737072ACentrifugal pumpIHC HOLLAND NV·Filed 1987·Granted Apr 12, 1988·9 cites·4 claims
- 5024US4394041AHoisting yokeIHC HOLLAND NV·Filed 1981·Granted Jul 19, 1983·6 cites·2 claims
Showing the top 50 of 61 patent records by PatentIndex Score.
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