Patents by Inventor Matthew L. Iwen
Matthew L. Iwen 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: 9855413Abstract: A header for use in implantable pulse generator devices. The header is part of electrical connector assembly having one or more openings designed to receive the terminal pin of an electrical lead wire or electrode. The header is designed to provide and sustain long-term electrical and mechanical lead wire connections between the electrodes of a terminal pin and the implantable pulse generator device.Type: GrantFiled: January 30, 2015Date of Patent: January 2, 2018Assignee: DONATELLE PLASTICS, INC.Inventors: Raghu Vadlamudi, Matthew L. Iwen, Matthew R. Call, Christopher M. Zerby, Clint J. Fonder
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Patent number: 9278224Abstract: A multi-foil ringlet in combination with a cylindrical housing provides advantageous results when employed as a contact of a header of an implantable pulse generator. The multi-foil ringlet provides a superior electrical connection between the header and a lead pin inserted into the header.Type: GrantFiled: November 3, 2014Date of Patent: March 8, 2016Assignee: Donatelle Plastics, Inc.Inventors: Raghu Vadlamudi, Matthew L. Iwen, Clint J. Fonder
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Patent number: 9276348Abstract: A connector for electrically and mechanically coupling a lead pin to a pulse generator that includes a housing and a plunger having openings which can be aligned in an unlocked position to permit insertion and retraction of the lead pin. The connector also has a biasing member which moves and then holds the plunger in a locked position relative to the housing such that the housing and plunger pinch the lead pin thereby coupling the lead pin to the connector.Type: GrantFiled: January 16, 2015Date of Patent: March 1, 2016Assignee: Donatelle Plastics, Inc.Inventors: Raghu Vadlamudi, Matthew L. Iwen, Christopher M. Zerby, Clint J. Fonder
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Patent number: 9089686Abstract: A header for use in implantable pulse generator devices. The header is part of electrical connector assembly having one or more openings designed to receive the terminal pin of an electrical lead wire or electrode. The header is designed to provide and sustain long-term electrical and mechanical lead wire connections between the electrodes of a terminal pin and the implantable pulse generator device.Type: GrantFiled: October 22, 2013Date of Patent: July 28, 2015Assignee: Donatelle Plastics, Inc.Inventors: Matthew L. Iwen, Matthew R. Call
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Publication number: 20150142092Abstract: A header for use in implantable pulse generator devices. The header is part of electrical connector assembly having one or more openings designed to receive the terminal pin of an electrical lead wire or electrode. The header is designed to provide and sustain long-term electrical and mechanical lead wire connections between the electrodes of a terminal pin and the implantable pulse generator device.Type: ApplicationFiled: January 30, 2015Publication date: May 21, 2015Inventors: Raghu Vadlamudi, Matthew L. Iwen, Matthew R. Call, Christopher M. Zerby, Clint J. Fonder
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Publication number: 20140067034Abstract: A header for use in implantable pulse generator devices. The header is part of electrical connector assembly having one or more openings designed to receive the terminal pin of an electrical lead wire or electrode. The header is designed to provide and sustain long-term electrical and mechanical lead wire connections between the electrodes of a terminal pin and the implantable pulse generator device.Type: ApplicationFiled: October 22, 2013Publication date: March 6, 2014Applicant: Donatelle Plastics, Inc.Inventors: Matthew L. Iwen, Matthew R. Call
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Patent number: 8666494Abstract: A header for use in implantable pulse generator devices. The header is part of electrical connector assembly having one or more openings designed to receive the terminal pin of an electrical lead wire or electrode. The header is designed to provide and sustain long-term electrical and mechanical lead wire connections between the electrodes of a terminal pin and the implantable pulse generator device.Type: GrantFiled: April 25, 2011Date of Patent: March 4, 2014Assignee: Donatelle Plastics, Inc.Inventors: Dana E. Schramm, Matthew L. Iwen, Nick J. Miller, Matthew R. Call
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Publication number: 20110270363Abstract: A header for use in implantable pulse generator devices. The header is cart, of electrical connector assembly having one or more openings designed to receive the terminal pin of an electrical lead wire or electrode. The header is designed to provide and sustain long-term electrical and mechanical lead wire connections between the electrodes of a terminal pin and the implantable pulse generator device.Type: ApplicationFiled: April 25, 2011Publication date: November 3, 2011Applicant: DONATELLE PLASTICS, INC.Inventors: Dana E. Schramm, Matthew L. Iwen, Nick J. Miller, Matthew R. Call
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Patent number: 6833038Abstract: A barrier sheet having a first side and a second side, a top edge, a bottom edge, and a laterally located midpoint, wherein the sheet is folded along its length to form a folded sheet defined by at least one fold with an adhesive strip positioned at a predetermined distance from the top and bottom edges, and preferably approximately at the sheet midpoint. When making a roll of barrier material, a barrier sheet material is provided and folded at least once laterally. The sheet then incorporates an adhesive strip applied to one side of the sheet at a predetermined distance from the top and bottom ends, preferably approximately at the midpoint. The adhesive strip is oriented lengthwise such that when the sheet is unrolled from the roll and unfolded, the strip will approximately bisect the sheet lengthwise. The sheet is then folded in a predetermined fashion, and rolled onto a roll.Type: GrantFiled: December 17, 2001Date of Patent: December 21, 2004Assignee: Tyco International (US), Inc.Inventors: Matthew L. Iwen, Robert A. Christopherson, Don Kiser, Thomas J. Lundborg
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Publication number: 20020045020Abstract: A barrier sheet having a first side and a second side, a top edge, a bottom edge, and a laterally located midpoint, wherein the sheet is folded along its length to form a folded sheet defined by at least one fold with an adhesive strip positioned at a predetermined distance from the top and bottom edges, and preferably approximately at the sheet midpoint. When making a roll of barrier material, a barrier sheet material is provided and folded at least once laterally. The sheet then incorporates an adhesive strip applied to one side of the sheet at a predetermined distance from the top and bottom ends, preferably approximately at the midpoint. The adhesive strip is oriented lengthwise such that when the sheet is unrolled from the roll and unfolded, the strip will approximately bisect the sheet lengthwise. The sheet is then folded in a predetermined fashion, and rolled onto a roll.Type: ApplicationFiled: December 17, 2001Publication date: April 18, 2002Applicant: Rexam Flexible PackagingInventors: Matthew L. Iwen, Robert A. Christopherson, Don Kiser, Thomas J. Lundborg
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Patent number: 6355323Abstract: A barrier sheet having a first side and a second side, a top edge, a bottom edge, and a laterally located midpoint, wherein the sheet is folded along its length to form a folded sheet defined by at least one fold with an adhesive strip positioned at a predetermined distance from the top and bottom edges, and preferably approximately at the sheet midpoint. When making a roll of barrier material, a barrier sheet material is provided and folded at least once laterally. The sheet then incorporates an adhesive strip applied to one side of the sheet at a predetermined distance from the top and bottom ends, preferably approximately at the midpoint. The adhesive strip is oriented lengthwise such that when the sheet is unrolled from the roll and unfolded, the strip will approximately bisect the sheet lengthwise. The sheet is then folded in a predetermined fashion, and rolled onto a roll.Type: GrantFiled: January 27, 2000Date of Patent: March 12, 2002Inventors: Matthew L. Iwen, Robert A. Christopherson, Don Kiser, Thomas J. Lundborg
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Patent number: 6183814Abstract: A coated paper product including a paper layer and a polymer layer, wherein the polymer layer includes a polylactide polymer composition having a ratio of Mz to Mn of greater than about 6. The polymer composition, when melted, exhibits a die swell of greater than about 1.25 for a melt flow index of greater than about 2. Polymer lactide compositions, methods of manufacturing the polymer composition and the coated paper product, and articles produced therefrom are also described.Type: GrantFiled: May 23, 1997Date of Patent: February 6, 2001Assignee: Cargill, IncorporatedInventors: James Nangeroni, Mark H. Hartmann, Matthew L. Iwen, Christopher Michael Ryan, Jeffrey J. Kolstad, Kevin T. McCarthy
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Patent number: 5357035Abstract: A process for the continuous production of polylactide polymers from lactic acid which incorporates removal of water or a solvent carrier to concentrate the lactic acid feed followed by polymerization to a low-molecular-weight prepolymer. This prepolymer is fed to a reactor in which a catalyst is added to facilitate generation of lactide, the depolymerization product of polylactic acid. The lactide generated is continuously fed to a distillation system as a liquid or vapor wherein water and other impurities are removed. The resultant purified liquid lactide is fed directly to a polymerization process.Type: GrantFiled: September 16, 1993Date of Patent: October 18, 1994Assignee: Cargill, IncorporatedInventors: Patrick R. Gruber, Eric S. Hall, Jeffrey J. Kolstad, Matthew L. Iwen, Richard D. Benson, Ronald L. Borchardt
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Patent number: 5274073Abstract: A process for the continuous conversion of crude lactic acid to a substantially purified lactide or polylactide including the steps of polymerizing the lactic acid to form a prepolymer with subsequent depolymerization to form a crude lactide in the presence of a catalyst. The crude lactide is purified in an improved distillation system in which at least three fractions are formed with the substantially purified lactide removed as an intermediate boiling sidedraw stream. The substantially purified lactide may then be polymerized.Type: GrantFiled: August 24, 1992Date of Patent: December 28, 1993Assignee: Cargill, IncorporatedInventors: Patrick R. Gruber, Eric S. Hall, Jeffrey J. Kolstad, Matthew L. Iwen, Richard D. Benson, Ronald L. Borchardt
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Patent number: 5258488Abstract: A process for the continuous production of polylactide polymers from lactic acid which incorporates removal of water or a solvent carrier to concentrate the lactic acid feed followed by polymerization to a low-molecular-weight prepolymer. This prepolymer is fed to a reactor in which a catalyst is added to facilitate generation of lactide, the depolymerization product of polylactic acid. The lactide generated is continuously fed to a distillation system as a liquid or vapor wherein water and other impurities are removed. The resultant purified liquid lactide is fed directly to a polymerization process.Type: GrantFiled: August 7, 1992Date of Patent: November 2, 1993Assignee: Cargill, IncorporatedInventors: Patrick R. Gruber, Eric S. Hall, Jeffrey J. Kolstad, Matthew L. Iwen, Richard D. Benson, Ronald L. Borchardt
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Patent number: 5247059Abstract: A process for the continuous production of substantially purified lactide and lactide polymers from an ester of lactic acid including the steps of forming crude lactide in the presence of a catalyst means to form a condensation reaction by-product and polylactic acid and depolymerizing the polylactic acid molecules followed by subsequent purification of the crude lactide in a distillation system. A purified lactide is then polymerized.Type: GrantFiled: August 24, 1992Date of Patent: September 21, 1993Assignee: Cargill, IncorporatedInventors: Patrick R. Gruber, Eric S. Hall, Jeffrey J. Kolstad, Matthew L. Iwen, Richard D. Benson, Ronald L. Borchardt
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Patent number: 5142023Abstract: A process for the continuous production of polylactide polymers from lactic acid which incorporates removal of water or a solvent carrier to concentrate the lactic acid feed followed by polymerization to a low-molecular-weight prepolymer. This prepolymer is fed to a reactor in which a catalyst is added to facilitate generation of lactide, the depolymerization product of polylactic acid. The lactide generated is continuously fed to a distillation system as a liquid or vapor wherein water and other impurities are removed. The resultant purified liquid lactide is fed directly to a polymerization process.Type: GrantFiled: January 24, 1992Date of Patent: August 25, 1992Assignee: Cargill, IncorporatedInventors: Patrick R. Gruber, Eric S. Hall, Jeffrey J. Kolstad, Matthew L. Iwen, Richard D. Benson, Ronald L. Borchardt