Patents by Inventor Paul M. Petersen

Paul M. Petersen 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).

  • Patent number: 6201099
    Abstract: The present invention is directed to multireactivity polymercaptans, star-shaped copolymers and methods of preparing wherein the polymer comprises a polyvalent mercaptan core and three or more polymeric arms which extend radially from the core. The polyvalent mercaptan core comprises three or more thiol groups, wherein at least two of the thiol groups are of different reactivities, such that the core is of differential reactivity. These multifunctional thiols, which will be referred to as cores of differential reactivity, act as chain transfer agents in a free radical polymerization process.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: March 13, 2001
    Assignee: National Starch & Chemical Investment Holding Corporation
    Inventors: Paul M. Petersen, Robert D. Harlan, Jules E. Schoenberg
  • Patent number: 6160110
    Abstract: A water-soluble or water-dispersible amino acid copolymer having pendent polysaccharide moieties. The invention also provides a method for cleaning an article and a method of providing soil resistance to an article using the amino acid copolymer having pendent polysaccharide moieties. The amino acid copolymers are useful in cleaning compositions such as laundry detergents, dishwashing detergents, prespotters, fabric softeners, and hard surface cleaners.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: December 12, 2000
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: John S. Thomaides, Klein A. Rodrigues, Paul M. Petersen
  • Patent number: 6150468
    Abstract: The present invention is directed to amphiphilic star polymers and their use as emulsion stabilizers in emulsion polymerization.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: November 21, 2000
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Jules E. Schoenberg, Robert D. Harlan, Grant T. Shouldice, Paul M. Petersen
  • Patent number: 6040406
    Abstract: Water-treatment compositions are provided which contain a water-soluble, water-treatment polymer and, optionally, additional water-treatment chemicals. The polymers are prepared from water-treatment monomers and a photo-inert, latently-detectable moiety which is covalently bonded to the polymer backbone. When the residue of the photo-inert moiety is contacted with an amount of a photoactivator which is effective to cause the residue of the photo-inert moiety to absorb within a wavelength ranging from 300 to 800 nanometers, the residue of the photo-inert moiety is detectable at concentrations of less than 100 parts per million. Methods are also provided which allow for the determination of the concentration of low levels, i.e., less than 100 ppm, of the water-treatment polymer present in an aqueous system.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: March 21, 2000
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Allen M. Carrier, Robert W. R. Humphreys, Paul M. Petersen
  • Patent number: 5990229
    Abstract: An adhesive, which contains olefinic polymers and less than 1% by weight of free monomers, is manufactured via catalytic hydrogenation. It is preferably used in the area of cosmetics, in the foods sector, in medicinal plasters and transdermal systems.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: November 23, 1999
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Thomas Hille, Paul M. Petersen, James Burkert, Paul B. Foreman
  • Patent number: 5962400
    Abstract: A water-soluble or water-dispersible amino acid copolymer having pendent polysaccharide moieties. The invention also provides a method for cleaning an article and a method of providing soil resistance to an article using the amino acid copolymer having pendent polysaccharide moieties. The amino acid copolymers are useful in cleaning compositions such as laundry detergents, dishwashing detergents, prespotters, fabric softeners, and hard surface cleaners.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: October 5, 1999
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: John S. Thomaides, Klein A. Rodrigues, Paul M. Petersen
  • Patent number: 5812852
    Abstract: A software-implemented method for dynamically and statically privatizing global storage objects in parallel computer programs written in various programming languages. Privatization is accomplished via transformation of these parallel computer programs under the control of a general purpose computer. The privatization method is system-independent and is portable across various computer architectures and platforms since privatization is accomplished via program transformation; thus, the method does not depend on the features of a particular hardware architecture or configuration, operating system, compiler, linker, or thread environment. The inputs to the method are a parallel computer program, comprising parallel regions of execution and global storage objects, and a privatization specification describing the global storage objects to be privatized and the particular parallel regions, and manner, in which each of these objects is to be privatized.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: September 22, 1998
    Assignee: Kuck & Associates, Inc.
    Inventors: David K. Poulsen, Paul M. Petersen, Sanjiv M. Shah
  • Patent number: 5654198
    Abstract: Water-treatment compositions are provided which contain a water-soluble, water-treatment polymer and, optionally, additional water-treatment chemicals. The polymers are prepared from water-treatment monomers and a photo-inert, latently-detectable moiety which is covalently bonded to the polymer backbone. When the residue of the photo-inert moiety is contacted with an amount of a photoactivator which is effective to cause the residue of the photo-inert moiety to absorb within a wavelength ranging from 300 to 800 nanometers, the residue of the photo-inert moiety is detectable at concentrations of less than 100 parts per million. Methods are also provided which allow for the determination of the concentration of low levels, i.e., less than 100 ppm, of the water-treatment polymer present in an aqueous system.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: August 5, 1997
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Allen M. Carrier, Robert W. R. Humphreys, Paul M. Petersen
  • Patent number: 5563252
    Abstract: Polymerizable, saccharide-derived monomers are prepared in processes which utilize water as the reaction solvent and which preferably do not utilize a cosolvent. The saccharide monomers are prepared from a saccharide unit, an amine selected from the group consisting of R.sup.3 NH.sub.2, where R.sup.3 is selected from the group consisting of a C.sub.1 -C.sub.18 alkyl group, H or NH.sub.2, and a single, polymerizable, .alpha.-methyl styryl moiety. The saccharide monomers are useful in preparing polymers for use in freeze-thaw stable aqueous-based compositions which do not require conventional freeze-thaw solvents and colorimetrically detectable polymers which are used in treating aqueous systems.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: October 8, 1996
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: John S. Thomaides, James Burkert, Rajeev Farwaha, Robert W. R. Humphreys, Paul M. Petersen