Assignee
WAVIN BV
NL·149 granted patents·8 pending applications·2,852 citations·filing 1972–2025
Top patents by PatentIndex Score
157 records- 0190US3943273AElectrically conducting plastic pipe systemWAVIN BV·Filed 1974·Granted Mar 9, 1976·48 cites·4 claims
- 0288US10132069B2Plastic infiltration unit, a system comprising a plurality of plastic infiltration unitsWAVIN BV·Filed 2015·Granted Nov 20, 2018·13 cites·27 claims
- 0388US4019761AConnection for foam insulated pipesWAVIN BV·Filed 1972·Granted Apr 26, 1977·28 cites·3 claims
- 0487US4754781APlastic pipe comprising an outer corrugated pipe and a smooth inner wallWAVIN BV·Filed 1986·Granted Jul 5, 1988·145 cites·7 claims
- 0587US4441745ACoupling pipe part for interconnecting corrugated pipe partsWAVIN BV·Filed 1983·Granted Apr 10, 1984·61 cites·6 claims
- 0687US4316419APlastics palletWAVIN BV·Filed 1978·Granted Feb 23, 1982·138 cites·6 claims
- 0786US4578329AMethod of marking an article having at least a polyolefin surface and an article having a polyolefin surface provided with a black mark of decomposed polyolefinWAVIN BV·Filed 1983·Granted Mar 25, 1986·86 cites·17 claims
- 0886US4572523ASealing joint and retaining ring for pipe grooved bell and straight spigot jointWAVIN BV·Filed 1983·Granted Feb 25, 1986·67 cites·19 claims
- 0985US10808390B2Plastic infiltration unit and systemWAVIN BV·Filed 2015·Granted Oct 20, 2020·9 cites·43 claims
- 1083US4743123APlastic bag and closed plastic bag with laser-formed venting perforationsWAVIN BV·Filed 1986·Granted May 10, 1988·80 cites·10 claims
- 1183US4321228AMethod of and apparatus for manufacturing a plastic pipe comprising longitudinally extending hollow channels in its wallWAVIN BV·Filed 1980·Granted Mar 23, 1982·47 cites·8 claims
- 1282US4561107AWeb of plastic bagsWAVIN BV·Filed 1982·Granted Dec 24, 1985·33 cites·6 claims
- 1380US5340160AThermoplastic saddle in two parts for repairing or renovating a pipe line with branch pipe and repaired or renovated pipe with a saddleWAVIN BV·Filed 1990·Granted Aug 23, 1994·62 cites·7 claims
- 1479US4452303ADevice and a method for recovering heat from the soilWAVIN BV·Filed 1981·Granted Jun 5, 1984·40 cites·3 claims
- 1579US4440195APlastic tube with longitudinal channels in the wallWAVIN BV·Filed 1982·Granted Apr 3, 1984·34 cites·5 claims
- 1679US3938834APipe connection for plastic pipes comprising a transversely or helically corrugated pipe-connecting partWAVIN BV·Filed 1973·Granted Feb 17, 1976·31 cites·7 claims
- 1778US4566704ASealing body for a pipe connectionWAVIN BV·Filed 1985·Granted Jan 28, 1986·40 cites·1 claims
- 1877US4390383AMethod of making plastic pipes having walls with lengthwise extending channelsWAVIN BV·Filed 1981·Granted Jun 28, 1983·31 cites·9 claims
- 1976US6726863B2Thermoplastic tubeWAVIN BV·Filed 2001·Granted Apr 27, 2004·12 cites·15 claims
- 2076US4491959APlastic bag with gusset folds and perforationsWAVIN BV·Filed 1983·Granted Jan 1, 1985·55 cites·5 claims
- 2176US4214612ATube of non woven material for reversed osmosisWAVIN BV·Filed 1975·Granted Jul 29, 1980·48 cites·4 claims
- 2275US5108669AProcess and apparatus perforating tubular plastic foil with a laser beamWAVIN BV·Filed 1989·Granted Apr 28, 1992·31 cites·9 claims
- 2375US4441743AAdhesively joined pipe connectionWAVIN BV·Filed 1981·Granted Apr 10, 1984·37 cites·7 claims
- 2474US6214283B1Method for treating an extruded plastic section and extrusion installation thereforWAVIN BV·Filed 1997·Granted Apr 10, 2001·37 cites·11 claims
- 2574US4783178AMethod of manufacturing a web of plastic bagsWAVIN BV·Filed 1987·Granted Nov 8, 1988·26 cites·6 claims
- 2674US4150087ATube of thermoplastics with thickened endWAVIN BV·Filed 1976·Granted Apr 17, 1979·32 cites·7 claims
- 2772US4449910AApparatus for making profiled plastic tubeWAVIN BV·Filed 1982·Granted May 22, 1984·31 cites·11 claims
- 2872US4120325AElectrically conducting plastic pipe systemWAVIN BV·Filed 1976·Granted Oct 17, 1978·29 cites·1 claims
- 2970US7712997B2Infiltration blockWAVIN BV·Filed 2005·Granted May 11, 2010·13 cites·31 claims
- 3070US4636190AApparatus for manufacturing a web of plastic bagsWAVIN BV·Filed 1985·Granted Jan 13, 1987·23 cites·9 claims
- 3170US4555884APlastic glazing profile designed for glazing window-framesWAVIN BV·Filed 1984·Granted Dec 3, 1985·40 cites·2 claims
- 3270US4495128AMethod for coloring polyvinylchlorideWAVIN BV·Filed 1980·Granted Jan 22, 1985·9 cites·1 claims
- 3369US4689936AProcess for the packaging of products, using a heat treatment, and closed container with packed products, obtained using a heat treatmentWAVIN BV·Filed 1986·Granted Sep 1, 1987·35 cites·8 claims
- 3468US4230157APipe having an end portion, the inner wall of which is provided with a circumferential groove, in which a sealing means is mounted and a pipe joint consisting of this pipe and a spigot end of a second pipe inserted thereinWAVIN BV·Filed 1979·Granted Oct 28, 1980·32 cites·19 claims
- 3567US7748754B2Pipe section provided with a socket end partWAVIN BV·Filed 2005·Granted Jul 6, 2010·9 cites·6 claims
- 3667US4662655APipe connection of fibre reinforced plastic pipe partsWAVIN BV·Filed 1984·Granted May 5, 1987·30 cites·6 claims
- 3767US4369159APlastic socket pipe part and method of manufacturing sameWAVIN BV·Filed 1981·Granted Jan 18, 1983·29 cites·1 claims
- 3866US5948332AMethod for manufacturing biaxially oriented tubing from thermoplastic materialWAVIN BV·Filed 1995·Granted Sep 7, 1999·26 cites·20 claims
- 3966US3960062AMethod of making a band of plastic bagsWAVIN BV·Filed 1974·Granted Jun 1, 1976·18 cites·5 claims
- 4065US11703162B2Press fitting deviceWAVIN BV·Filed 2017·Granted Jul 18, 2023·2 cites·12 claims
- 4165US6368547B1Method for producing an extruded hollow plastic sectionWAVIN BV·Filed 1999·Granted Apr 9, 2002·24 cites·24 claims
- 4265US5942171AMethod for manufacturing biaxially oriented tubing from thermoplastic materialWAVIN BV·Filed 1995·Granted Aug 24, 1999·26 cites·5 claims
- 4365US4813457AFlanged pipe part made of fiber-reinforced thermosetting synthetic resin with protective layer preventing crack formation in an angular intersectionWAVIN BV·Filed 1988·Granted Mar 21, 1989·33 cites·11 claims
- 4465US4634844AElectroweldable socket and a device of manufacturing such a socketWAVIN BV·Filed 1985·Granted Jan 6, 1987·26 cites·8 claims
- 4565US4441744ABranch pipe partWAVIN BV·Filed 1981·Granted Apr 10, 1984·29 cites·6 claims
- 4665US4428591APlastic pipe provided with a grooveWAVIN BV·Filed 1982·Granted Jan 31, 1984·17 cites·3 claims
- 4764US10889081B2Multi-layered pipe and a method for forming a multi-layered pipeWAVIN BV·Filed 2017·Granted Jan 12, 2021·1 cites·30 claims
- 4864US5286437AMethod and installation for the production of plastic products with the aid of a hot mixture of PVC powder and additives, and a hot mixer suitable for use with this methodWAVIN BV·Filed 1991·Granted Feb 15, 1994·34 cites·18 claims
- 4964US4103320AThermally insulated pipe with electrically conducting portions for dissipating static electricityWAVIN BV·Filed 1976·Granted Jul 25, 1978·23 cites·17 claims
- 5064US3991150AMethod for forming a plastic pipeWAVIN BV·Filed 1975·Granted Nov 9, 1976·20 cites·2 claims
Showing the top 50 of 157 patent records by PatentIndex Score.
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