Assignee
HOLLANDSCHE BETONGROEP NV
24 granted patents·431 citations·filing 1975–1998
Top patents by PatentIndex Score
24 records- 0188US4102147ASubmersible positioning and guiding apparatus for pile drivingHOLLANDSCHE BETONGROEP NV·Filed 1976·Granted Jul 25, 1978·46 cites·5 claims
- 0285US3975918APiledrivingHOLLANDSCHE BETONGROEP NV·Filed 1975·Granted Aug 24, 1976·44 cites·15 claims
- 0381US4367800ASubsea pile driverHOLLANDSCHE BETONGROEP NV·Filed 1980·Granted Jan 11, 1983·45 cites·8 claims
- 0480US4362216APile driving apparatusHOLLANDSCHE BETONGROEP NV·Filed 1977·Granted Dec 7, 1982·31 cites·7 claims
- 0570US4119159APile driving apparatusHOLLANDSCHE BETONGROEP NV·Filed 1977·Granted Oct 10, 1978·27 cites·10 claims
- 0668US4358225ADeep ocean conduitHOLLANDSCHE BETONGROEP NV·Filed 1980·Granted Nov 9, 1982·27 cites·8 claims
- 0767US5548397ASystem for positioning a pile driving rig or similar installationHOLLANDSCHE BETONGROEP NV·Filed 1994·Granted Aug 20, 1996·46 cites·21 claims
- 0863US4363570AUpper end mounting for deep water thermal conduitHOLLANDSCHE BETONGROEP NV·Filed 1980·Granted Dec 14, 1982·20 cites·4 claims
- 0959US4373338ASystem for generating energy using the temperature difference between the water temperature at the sea surface and the water temperature at greater depthHOLLANDSCHE BETONGROEP NV·Filed 1981·Granted Feb 15, 1983·18 cites·3 claims
- 1059US4069683AMethod and device for securing a support structure onto the ocean floorHOLLANDSCHE BETONGROEP NV·Filed 1976·Granted Jan 24, 1978·16 cites·7 claims
- 1158US5584993ASettling unit with plate separatorHOLLANDSCHE BETONGROEP NV·Filed 1994·Granted Dec 17, 1996·27 cites·11 claims
- 1257US4051685APositioning method and apparatus for submersible pile drivingHOLLANDSCHE BETONGROEP NV·Filed 1976·Granted Oct 4, 1977·14 cites·4 claims
- 1356US3998064ASubaqueous pile driving apparatus and methodHOLLANDSCHE BETONGROEP NV·Filed 1975·Granted Dec 21, 1976·14 cites·7 claims
- 1452US4063599AMethod and apparatus for underwater pile drivingHOLLANDSCHE BETONGROEP NV·Filed 1976·Granted Dec 20, 1977·12 cites·7 claims
- 1551US4045969ASubmergible pile driving method and apparatus for continuous operationHOLLANDSCHE BETONGROEP NV·Filed 1976·Granted Sep 6, 1977·12 cites·9 claims
- 1640US4064702AApparatus for maintaining axial alignment between a drop hammer and a driven pileHOLLANDSCHE BETONGROEP NV·Filed 1976·Granted Dec 27, 1977·7 cites·3 claims
- 1739US4151888ASubmergible pile driver with extension tube to accommodate tensioned cable string loopsHOLLANDSCHE BETONGROEP NV·Filed 1978·Granted May 1, 1979·6 cites·8 claims
- 1835US4129009AAnchoring construction on the sea bottomHOLLANDSCHE BETONGROEP NV·Filed 1977·Granted Dec 12, 1978·5 cites·4 claims
- 1934US4279313AUnder water pile driverHOLLANDSCHE BETONGROEP NV·Filed 1979·Granted Jul 21, 1981·4 cites·3 claims
- 2029US4288178AApparatus for generating a retropulsive force on a body such as a pileHOLLANDSCHE BETONGROEP NV·Filed 1979·Granted Sep 8, 1981·0 cites·6 claims
- 2129US4226287AApparatus for pile driver cushion recoilHOLLANDSCHE BETONGROEP NV·Filed 1978·Granted Oct 7, 1980·1 cites·10 claims
- 2216US4285237ADevice for accurate subaqueous measurementsHOLLANDSCHE BETONGROEP NV·Filed 1980·Granted Aug 25, 1981·4 cites·3 claims
- 2314US6370825B1Event construction with movable pitchHOLLANDSCHE BETONGROEP NV·Filed 1998·Granted Apr 16, 2002·3 cites·21 claims
- 2413US4475846AMethod of placing a webHOLLANDSCHE BETONGROEP NV·Filed 1980·Granted Oct 9, 1984·2 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when HOLLANDSCHE BETONGROEP NV files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →