Patents by Inventor Patrick D. McDonald
Patrick D. McDonald 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: 7054833Abstract: A method and system for processing unclaimed property information. Escheat or unclaimed property information is periodically obtained from one or more unclaimed property repositories. The unclaimed property information maintained in multiple formats at the one or more unclaimed property repositories is transformed into a unified database format. Multiple database records are created in an unclaimed property database using the unified database format. Owners of unclaimed property, identified in the unclaimed property database are automatically located by searching one or more other databases on public and private computer networks such as the Internet. A located owner of unclaimed property is automatically notified as to the existence and amount of unclaimed property with electronic mail, an automatic voice recording or via paper documents. A graphical user interface available on a computer network is presented that allows an identified owner of unclaimed property to request unclaimed property.Type: GrantFiled: October 27, 2000Date of Patent: May 30, 2006Inventor: Patrick D. McDonald
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Patent number: 6773583Abstract: A method for removing an organic solute from a solution comprises contacting the solution with a polymer formed by copolymerizing one or more hydrophobic monomers and one or more hydrophilic monomers, whereby the solute is adsorbed onto the polymer. The solution can comprise a polar solvent such as a polar organic solvent or water or an aqueous buffer. The hydrophobic monomer can be, for example, divinylbenzene. The hydrophilic monomer can be, for example, a heterocyclic monomer, such as a vinylpyridine or N-vinylpyrrolidone.Type: GrantFiled: July 9, 2003Date of Patent: August 10, 2004Assignee: Waters Investments Ltd.Inventors: Edouard S. P. Bouvier, Randy E. Meirowitz, Patrick D. McDonald
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Patent number: 6726842Abstract: A method for removing an organic solute from a solution, comprising contacting the solution with a polymer formed by copolymerizing one or more hydrophobic monomers and one or more hydrophilic monomers, whereby the solute is adsorbed onto the polymer. The solution can comprise a polar solvent such as a polar organic solvent or water or an aqueous buffer. The hydrophobic monomer can be, for example, divinylbenzene. The hydrophilic monomer can be, for example, a heterocyclic monomer, such as a vinylpyridine or N-vinylpyrrolidone.Type: GrantFiled: September 5, 2002Date of Patent: April 27, 2004Assignee: Waters Investment Ltd.Inventors: Edouard S. P. Bouvier, Randy E. Meirowitz, Patrick D. McDonald
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Publication number: 20040011729Abstract: A method for removing an organic solute from a solution comprises contacting the solution with a polymer formed by copolymerizing one or more hydrophobic monomers and one or more hydrophilic monomers, whereby the solute is adsorbed onto the polymer. The solution can comprise a polar solvent such as a polar organic solvent or water or an aqueous buffer. The hydrophobic monomer can be, for example, divinylbenzene. The hydrophilic monomer can be, for example, a heterocyclic monomer, such as a vinylpyridine or N-vinylpyrrolidone.Type: ApplicationFiled: July 9, 2003Publication date: January 22, 2004Applicant: Waters Investments Ltd.Inventors: Edouard S. P. Bouvier, Randy E. Meirowitz, Patrick D. McDonald
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Publication number: 20030042206Abstract: A method for removing an organic solute from a solution, comprising contacting the solution with a polymer formed by copolymerizing one or more hydrophobic monomers and one or more hydrophilic monomers, whereby the solute is adsorbed onto the polymer. The solution can comprise a polar solvent such as a polar organic solvent or water or an aqueous buffer. The hydrophobic monomer can be, for example, divinylbenzene. The hydrophilic monomer can be, for example, a heterocyclic monomer, such as a vinylpyridine or N-vinylpyrrolidone.Type: ApplicationFiled: September 5, 2002Publication date: March 6, 2003Applicant: Waters Investments Ltd.Inventors: Edouard S. P. Bouvier, Randy E. Meirowitz, Patrick D. McDonald
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Patent number: 6468422Abstract: A method for removing an organic solute from a solution, comprising contacting the solution with a polymer formed by copolymerizing one or more hydrophobic monomers and one or more hydrophilic monomers, whereby the solute is adsorbed onto the polymer. The solution can comprise a polar solvent such as a polar organic solvent or water or an aqueous buffer. The hydrophobic monomer can be, for example, divinylbenzene. The hydrophilic monomer can be, for example, a heterocyclic monomer, such as a vinylpyridine or N-vinylpyrrolidone.Type: GrantFiled: June 5, 2001Date of Patent: October 22, 2002Assignee: Waters Investments Ltd.Inventors: Edouard S. P. Bouvier, Randy E. Meirowitz, Patrick D. McDonald
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Publication number: 20010035372Abstract: A method for removing an organic solute from a solution, comprising contacting the solution with a polymer formed by copolymerizing one or more hydrophobic monomers and one or more hydrophilic monomers, whereby the solute is adsorbed onto the polymer. The solution can comprise a polar solvent such as a polar organic solvent or water or an aqueous buffer. The hydrophobic monomer can be, for example, divinylbenzene. The hydrophilic monomer can be, for example, a heterocyclic monomer, such as a vinylpyridine or N-vinylpyrrolidone.Type: ApplicationFiled: June 5, 2001Publication date: November 1, 2001Applicant: Waters CorporationInventors: Edouard S. P. Bouvier, Randy E. Meirowitz, Patrick D. McDonald
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Patent number: 6254780Abstract: A method for removing an organic solute from a solution, comprising contacting the solution with a polymer formed by copolymerizing one or more hydrophobic monomers and one or more hydrophilic monomers, whereby the solute is adsorbed onto the polymer. The solution can comprise a polar solvent such as a polar organic solvent or water or an aqueous buffer. The hydrophobic monomer can be, for example, divinylbenzene. The hydrophilic monomer can be, for example, a heterocyclic monomer, such as a vinylpyridine or N-vinylpyrrolidone.Type: GrantFiled: August 21, 2000Date of Patent: July 3, 2001Assignee: Waters CorporationInventors: Edouard S. P. Bouvier, Randy E. Meirowitz, Patrick D. McDonald
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Patent number: 6106721Abstract: A method for removing an organic solute from a solution, comprising contacting the solution with a polymer formed by copolymerizing one or more hydrophobic monomers and one or more hydrophilic monomers, whereby the solute is adsorbed onto the polymer. The solution can comprise a polar solvent such as a polar organic solvent or water or an aqueous buffer. The hydrophobic monomer can be, for example, divinylbenzene. The hydrophilic monomer can be, for example, a heterocyclic monomer, such as a vinylpyridine or N-vinylpyrrolidone.Type: GrantFiled: August 16, 1999Date of Patent: August 22, 2000Assignee: Waters CorporationInventors: Edouard S. P. Bouvier, Randy E. Meirowitz, Patrick D. McDonald
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Patent number: 5976367Abstract: A method for removing an organic solute from a solution, comprising contacting the solution with a polymer formed by copolymerizing one or more hydrophobic monomers and one or more hydrophilic monomers, whereby the solute is adsorbed onto the polymer. The solution can comprise a polar solvent such as a polar organic solvent or water or an aqueous buffer. The hydrophobic monomer can be, for example, divinylbenzene. The hydrophilic monomer can be, for example, a heterocyclic monomer, such as a vinylpyridine or N-vinylpyrrolidone.Type: GrantFiled: December 18, 1998Date of Patent: November 2, 1999Assignee: Waters CorporationInventors: Edouard S. P. Bouvier, Randy E. Meirowitz, Patrick D. McDonald
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Patent number: 5882521Abstract: A method for removing an organic solute from a solution, comprising contacting the solution with a polymer formed by copolymerizing one or more hydrophobic monomers and one or more hydrophilic monomers, whereby the solute is adsorbed onto the polymer. The solution can comprise a polar solvent such as a polar organic solvent or water or an aqueous buffer. The hydrophobic monomer can be, for example, divinylbenzene. The hydrophilic monomer can be, for example, a heterocyclic monomer, such as a vinylpyridine or N-vinylpyrrolidone.Type: GrantFiled: April 18, 1996Date of Patent: March 16, 1999Assignee: Waters Investment Ltd.Inventors: Edouard S. P. Bouvier, Randy E. Meirowitz, Patrick D. McDonald
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Patent number: 4250035Abstract: Improved liquid chromatographic apparatus and an improved process for making and utilizing a chromatographic column. By providing means to exert radial pressure on the column packing, the packing efficiency of the column is increased and is more reproducible, and greater uniformity can be achieved in column performance both among packed columns of the same kind and during the useful life of a given packed column.Type: GrantFiled: November 13, 1978Date of Patent: February 10, 1981Assignee: Waters Associates, Inc.Inventors: Patrick D. McDonald, Carl W. Rausch
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Patent number: 4211658Abstract: A cartridge is disclosed which comprises a volume of particulate packing material through which a fluid is to flow, a piece of solid porous material adjacent to the surface of the packing material though which the fluid is to enter the volume and a second piece of solid porous material adjacent to the surface of the packing material through which the fluid is to exit from the volume, and a heat-shrinkable tubing which triaxially compress the packing material into a tightly packed bed predominantly in the directions which are normal to and parallel to the direction of fluid flow through the packed bed and which extends beyond the pieces of solid porous material to form an inlet opening to and an outlet opening from the packed bed.Type: GrantFiled: November 17, 1978Date of Patent: July 8, 1980Assignee: Waters Associates, Inc.Inventors: Patrick D. McDonald, Richard V. Vivilecchia, David R. Lorenz