Patents by Inventor John Meijer
John Meijer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11802446Abstract: An improved swivel with increased sealing capability at fluid pressures up to 20 ksi and at fluid temperatures as high as 250° F. and as low as 35° F. The swivel may be relatively compact, being less than 8 feet in overall length and can operate unpressurized with axial loads of at high as 1,400,000 lbs. The swivel may comprise a swivel mandrel rotationally coupled with a swivel housing. Rotational bearings units can be securely held using cartridge carriers. A pressure seal may be formed between the swivel mandrel and swivel housing via a redundant seal stack.Type: GrantFiled: June 23, 2020Date of Patent: October 31, 2023Assignee: OneSubsea IP UK LimitedInventor: John Meijer
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Patent number: 11796070Abstract: A ball valve assembly includes a ball having a fluid pathway and a leading edge portion. The ball is configured to rotate between an open position and a closed position, the fluid pathway is configured to align with a fluid passage while the ball is in the open position, and the fluid pathway is configured to be offset from the fluid passage while the ball is in the closed position. Furthermore, the leading edge portion includes a first leading edge configured to cut a line extending through the fluid pathway as the ball rotates from the open position to the closed position, the leading edge portion includes a second leading edge configured to engage a seal of the ball valve assembly as the ball rotates from the open position to the closed position, and the first leading edge is positioned radially inward from the second leading edge.Type: GrantFiled: June 24, 2020Date of Patent: October 24, 2023Assignee: ONESUBSEA IP UK LIMITEDInventors: John Meijer, Mangesh Edke, Jiju Ninan, Adam Tusing, Mahesh Shenoy
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Publication number: 20220341269Abstract: An improved swivel with increased sealing capability at fluid pressures up to 20 ksi and at fluid temperatures as high as 250° F. and as low as 35° F. The swivel may be relatively compact, being less than 8 feet in overall length and can operate unpressurized with axial loads of at high as 1,400,000 lbs. The swivel may comprise a swivel mandrel rotationally coupled with a swivel housing. Rotational bearings units can be securely held using cartridge carriers. A pressure seal may be formed between the swivel mandrel and swivel housing via a redundant seal stack.Type: ApplicationFiled: June 23, 2020Publication date: October 27, 2022Inventor: John Meijer
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Publication number: 20220243826Abstract: A ball valve assembly includes a ball having a fluid pathway and a leading edge portion. The ball is configured to rotate between an open position and a closed position, the fluid pathway is configured to align with a fluid passage while the ball is in the open position, and the fluid pathway is configured to be offset from the fluid passage while the ball is in the closed position. Furthermore, the leading edge portion includes a first leading edge configured to cut a line extending through the fluid pathway as the ball rotates from the open position to the closed position, the leading edge portion includes a second leading edge configured to engage a seal of the ball valve assembly as the ball rotates from the open position to the closed position, and the first leading edge is positioned radially inward from the second leading edge.Type: ApplicationFiled: June 24, 2020Publication date: August 4, 2022Inventors: John Meijer, Mangesh Edke, Jiju Ninan, Adam Tusing, Mahesh Shenoy
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Patent number: 8383834Abstract: The invention relates to a process for preparing saturated or unsaturated lactones. This process involves reacting a bicyclic compound or a monocyclic compound with hydrogen peroxide in the presence of a first acid having a pKa of 3 or less and a first organic solvent, thereby forming a hydroperoxide. The obtained mixture comprising the hydroperoxide is subsequently metered to a mixture of a second organic solvent and a dissociation-enhancing catalyst, optionally comprising a second organic acid. The invention also pertains to a process of preparing the hydroperoxide.Type: GrantFiled: May 10, 2005Date of Patent: February 26, 2013Assignee: SYMRISE AGInventors: John Meijer, René Gerritsen, Bart Fischer
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Patent number: 8008380Abstract: The invention relates to an accelerator solution comprising a complexing agent selected from the group consisting of complexing agents having a nitrogen atom and a hydroxyl group and bipyridine, a salt of a metal selected from the group consisting of transition metal, magnesium, and lithium, and optionally a solvent, wherein when the complexing agent has a nitrogen atom and a hydroxyl group, the amount of complexing agent in the accelerator solution is at least 5 wt %, based on the total weight of the accelerator solution, the amount of solvent is less than 50 wt %, and the amount of diethylene glycol as solvent is less than 25 wt %, based on the total weight of the accelerator solution.Type: GrantFiled: March 31, 2008Date of Patent: August 30, 2011Assignee: AKZO Nobel N.V.Inventors: Frederik Willem Karel Koers, John Meijer, Anna Gerdine van de Bovenkamp-Bouwman
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Patent number: 7824503Abstract: The invention pertains to an aqueous composition having a pH of 3 or less and comprising the following ingredients, based on the total weight of the composition: a) 0.05-40 wt % of a polymeric thickener having —COOR groups, wherein R is independently chosen from H, OH, and a carbon-containing group, and b) 0.05-60 wt % of hydrogen peroxide, wherein the active oxygen content attributable to ingredient a) is at least 0.02 wt %, based on the total weight of the composition, with the proviso that (co)polymers prepared from (meth)acrylate monomers are absent.Type: GrantFiled: April 12, 2007Date of Patent: November 2, 2010Assignee: Akzo Nobel N.V.Inventors: Wasil Maslow, René Gerritsen, Bernhard De Vries, John Meijer, Paul Albert Iacobucci
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Patent number: 7825059Abstract: Process to prepare a trioxepane compound of the following formula (I) comprising less than 3.5 wt % of dialkyl peroxide based on the total amount of peroxides, said process comprising the steps of reacting a glycol compound of the formula R3CHOH—CH2—C(CH3)2OH with hydrogen peroxide in the presence of an acid to form a glycol hydroperoxide, purifying the glycol hydroperoxide, reacting the purified glycol hydroperoxide with a ketone or aldehyde of the formula R1R2CO in the presence of an acid to form the trioxepane compound, and purifying the trioxepane compound, wherein R1, R2, and R3 are independently selected from hydrogen and a substituted or unsubstituted hydrocarbyl group, with the proviso that if R1 and R2 are both methyl groups, R3 is not hydrogen. Initiator compositions comprising the so-prepared trioxepane compound are characterized by a high safe processing temperature in combination with a good crosslink efficiency.Type: GrantFiled: September 27, 2005Date of Patent: November 2, 2010Assignee: Akzo Nobel N.V.Inventors: John Meijer, Leonardus Bernardus Gerhardus Maria Nijhof, Herman Evert Roelofs, Haimo Tonnaer, Roelof Van De Worp
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Publication number: 20100120977Abstract: The invention relates to an accelerator solution comprising a complexing agent selected from the group consisting of complexing agents having a nitrogen atom and a hydroxyl group and bipyridine, a salt of a metal selected from the group consisting of transition metal, magnesium, and lithium, and optionally a solvent, wherein when the complexing agent has a nitrogen atom and a hydroxyl group, the amount of complexing agent in the accelerator solution is at least 5 wt %, based on the total weight of the accelerator solution, the amount of solvent is less than 50 wt %, and the amount of diethylene glycol as solvent is less than 25 wt %, based on the total weight of the accelerator solution.Type: ApplicationFiled: March 31, 2008Publication date: May 13, 2010Inventors: Frederik Willem Karel Koers, John Meijer, Anna Gerdine Van De Bovenkamp-Bouwman
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Publication number: 20090306411Abstract: The invention relates to a process for preparing saturated or unsaturated lactones. This process involves reacting a bicyclic compound or a monocyclic compound with hydrogen peroxide in the presence of a first acid having a pKa of 3 or less and a first organic solvent, thereby forming a hydroperoxide. The obtained mixture comprising the hydroperoxide is subsequently metered to a mixture of a second organic solvent and a dissociation-enhancing catalyst, optionally comprising a second organic acid. The invention also pertains to a process of preparing the hydroperoxide.Type: ApplicationFiled: May 10, 2005Publication date: December 10, 2009Applicant: SYMRISE GMBH & CO. KGInventors: John Meijer, Rene Gerritsen, Bart Fischer
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Publication number: 20090264333Abstract: The invention pertains to an aqueous composition having a pH of 3 or less and comprising the following ingredients, based on the total weight of the composition: a) 0.05-40 wt % of a polymeric thickener having —COOR groups, wherein R is independently chosen from H, OH, and a carbon-containing group, and b) 0.05-60 wt % of hydrogen peroxide, wherein the active oxygen content attributable to ingredient a) is at least 0.02 wt %, based on the total weight of the composition, with the proviso that (co)polymers prepared from (meth)acrylate monomers are absent.Type: ApplicationFiled: April 12, 2007Publication date: October 22, 2009Inventors: Wasil Maslow, Rene Gerritsen, Bernhard De Vries, John Meijer, Paul Albert Iacobucci
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Publication number: 20080132651Abstract: Process to prepare a trioxepane compound of the following formula (1) comprising less than 3.5 wt % of dialkyl peroxide based on the total amount of peroxides, said process comprising the steps of reacting a glycol compound of the formula R3CHOH—CH2—C(CH3)2OH with hydrogen peroxide in the presence of an acid to form a glycol hydroperoxide, purifying the glycol hydroperoxide, reacting the purified glycol hydroperoxide with a ketone or aldehyde of the formula R1R2CO in the presence of an acid to form the trioxepane compound, and purifying the trioxepane compound, wherein R1, R2, and R3 are independently selected from hydrogen and a substituted or unsubstituted hydrocarbyl group, with the proviso that if R1 and R2 are both methyl groups, R3 is not hydrogen. Initiator compositions comprising the so-prepared trioxepane compound are characterised by a high safe processing temperature in combination with a good crosslink efficiency.Type: ApplicationFiled: September 27, 2005Publication date: June 5, 2008Applicant: Akzo Nobel N.V.Inventors: John Meijer, Leonardus Bernardus Gerhardus Maria Nijhof, Herman Evert Roelofs, Haimo Tonnaer, Roelof Van De Worp
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Patent number: 7252784Abstract: The present invention relates to a cyclic ketone peroxide formulation comprising one or more crystallizing cyclic ketone peroxides, one or more co-crystallizing compounds which solidify in said cyclic ketone peroxide formulation at a temperature above the crystallization temperature of the crystallizing cyclic ketone peroxide, and, optionally, one or more conventional phlegmatizers (diluents). These formulations show improved safety and storage stability compared to conventional cyclic ketone peroxide formulations. The invention also pertains to the use of these formulations in (co)polymerization and (co)polymer modification processes.Type: GrantFiled: December 1, 2003Date of Patent: August 7, 2007Assignee: Akzo Nobel N.V.Inventors: Bart Fischer, John Meijer, Rolf Hendrik Van Den Berg, Johan Nuysink
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Publication number: 20060260803Abstract: A technique is provided in which a soft landing system is used for connecting upper and lower assemblies in a wellbore. The soft landing system cushions the engagement of an upper well assembly with a lower well assembly and facilitates the controlled engagement of control line connectors. The controlled engagement limits or avoids damage to the control line connectors in well completion operations performed in two or more stages.Type: ApplicationFiled: July 28, 2006Publication date: November 23, 2006Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: John Meijer, Raghuram Kamath, Jason Jonas, Robert Neves, David Verzwyvelt
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Publication number: 20060260818Abstract: A technique is provided in which a contraction joint is used to facilitate connection of well equipment assemblies at a downhole location. The contraction joint accommodates changes in system length during engagement and use or the well equipment assemblies in a wellbore. Additionally, the contraction joint provides a positive indication of joint position and enables resetting of the joint following initial contraction.Type: ApplicationFiled: July 28, 2006Publication date: November 23, 2006Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: John Meijer, Raghuram Kamath, Jason Jonas, Robert Neves, David Verzwyvelt
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Publication number: 20060260817Abstract: A technique is provided to facilitate connection of well equipment assemblies at a downhole location. A first assembly comprises a control line having a connector designed for coupling with a corresponding connector of a next adjacent assembly. Additionally, a mechanism is provided to restrain movement of the next adjacent assembly prior to full engagement with the first assembly to enable performance of a desired preparation procedure.Type: ApplicationFiled: May 17, 2006Publication date: November 23, 2006Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: John Meijer, Raghuram Kamath, Jason Jonas, Robert Neves, David Verzwyvelt
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Publication number: 20060167281Abstract: The present invention pertains to a novel process for the preparation of lactones by decomposition of a 1,2,4-trioxepane of formula (I) wherein, R is H or CH3, n is 1-14, Rx independently is any substituent on the ring structure, including substituents which form bi- or tricyclic structures, and m is 0-34.Type: ApplicationFiled: July 12, 2004Publication date: July 27, 2006Inventors: John Meijer, Rolf Van Den Berg
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Patent number: 7078553Abstract: The invention relates to peroxides derivable from The invention further relates to the process to make these peroxides as well as to their use in polymerization, curing, and modification reactions.Type: GrantFiled: April 16, 2003Date of Patent: July 18, 2006Assignee: Akzo Nobel N.V.Inventors: Anna Gerdine Van De Bovenkamp-Bouwman, Joachim Willem J. Van Gendt, John Meijer, Andreas Herman Hogt, Andreas Petrus Van Swieten
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Publication number: 20040260111Abstract: The invention relates to peroxides derivable from 1Type: ApplicationFiled: April 16, 2003Publication date: December 23, 2004Inventors: Anna Gerdine Van De Bovenkamp-Bouwman, Joachim Willem J. Van Gendt, John Meijer, Andreas Herman Hogt, Andreas Petrus Van Swieten
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Publication number: 20040162436Abstract: The present invention relates to a cyclic ketone peroxide formulation comprising one or more crystallizing cyclic ketone peroxides, one or more co-crystallizing compounds which solidify in said cyclic ketone peroxide formulation at a temperature above the crystallization temperature of the crystallizing cyclic ketone peroxide, and, optionally, one or more conventional phlegmatizers (diluents). These formulations show improved safety and storage stability compared to conventional cyclic ketone peroxide formulations. The invention also pertains to the use of these formulations in (co)polymerization and (co)polymer modification processes.Type: ApplicationFiled: December 1, 2003Publication date: August 19, 2004Applicant: AKZO NOBEL N.V.Inventors: Bart Fischer, John Meijer, Rolf Hendrik Van Den Berg, Johan Nuysink