Patents by Inventor Lorraine Holowach Keller

Lorraine Holowach Keller 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).

  • Methods for identifying products employing gene expression
    Publication number: 20030203360
    Abstract: A method for identifying a product involves the steps of: (1) associating with the product a marker ligand; and (2) detecting the marker ligand in the product at a later point in time as a means of identifying the product by contacting the product with a detector composition. The detector composition comprises one or more first nucleotide sequences encoding one or more natural or synthetic ligand-dependent transcription factors, wherein said factors comprise at least one ligand binding domain, at least one DNA binding domain and at least one transactivation domain; and a second nucleotide sequence encoding a reporter gene under the regulatory control of a receptor response element or a modified or synthetic response element, and a second promoter. The method may also employ a corepressor or coactivator or a nucleotide sequence encoding the corepressor or activator.
    Type: Application
    Filed: September 10, 2001
    Publication date: October 30, 2003
    Inventors: Barry Weinstein, Lorraine Holowach Keller, Subba Reddy Palli
  • Method for identifying products employing gene expression
    Patent number: 6576422
    Abstract: A method for identifying a product involves the steps of: (1) associating with the product a marker ligand; and (2) detecting the marker ligand in the product at a later point in time as a means of identifying the product by contacting the product with a detector composition. The detector composition comprises one or more first nucleotide sequences encoding one or more natural or synthetic ligand-dependent transcription factors, wherein said factors comprise at least one ligand binding domain, at least one DNA binding domain and at least one transactivation domain; and a second nucleotide sequence encoding a reporter gene under the regulatory control of a receptor response element or a modified or synthetic response element, and a second promoter.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: June 10, 2003
    Assignee: Rohm and Haas Company
    Inventors: Barry Weinstein, Lorraine Holowach Keller, Subba Reddy Palli
  • Detectable polymers and methods for detecting polymers in Aqueous systems
    Patent number: 6251680
    Abstract: Polymers having amine-thiol terminal moieties are provided. The amine-thiol terminal moieties are imparted by using amine-thiols as chain transfer agents in aqueous addition polymerizations. The polymers are useful as mineral dispersants, as water-treatment additives for boiler waters, cooling towers, reverse osmosis applications, sugar refining, paper production, geothermal processes and oil wells, and as detergent additives acting as builders, anti-filming agents, dispersants, sequestering agents and encrustation inhibitors.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: June 26, 2001
    Assignee: Rohm and Haas Company
    Inventors: Zhenwen Fu, Lorraine Holowach Keller, Barry Weinstein
  • Colorimetric or fluorometric-detectable polymers containing pendant amine groups
    Patent number: 6218491
    Abstract: Polymers having amine-thiol terminal moieties are provided. The amine-thiol terminal moieties are imparted by using amine-thiols as chain transfer agents in aqueous addition polymerizations. The polymers are useful as mineral dispersants, as water-treatment additives for boiler waters, cooling towers, reverse osmosis applications, sugar refining, paper production, geothermal processes and oil wells, and as detergent additives acting as builders, anti-filming agents, dispersants, sequestering agents and encrustation inhibitors.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: April 17, 2001
    Assignee: Rohm and Haas Company
    Inventors: Zhenwen Fu, Lorraine Holowach Keller, Barry Weinstein
  • Method for identifying and quantifying polymers utilizing immunoassay techniques
    Patent number: 6197522
    Abstract: Disclosed is a method for quantitatively identifying polymers in an aqueous system using immunoassay techniques, wherein at least a portion of the polymers contain a detectable terminus. This is particularly useful in water treatment systems. Also disclosed are new hybridoma cell lines which express MAbs which specifically recognize such a detectable terminus.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: March 6, 2001
    Assignee: Rohm and Haas Company
    Inventors: Lorraine Holowach Keller, Barry Weinstein
  • Polymers from unsaturated acid monomers containing amine-sulfide moiety
    Patent number: 5925716
    Abstract: Polymers having amine-thiol terminal moieties are provided. The amine-thiol terminal moieties are imparted by using amine-thiols as chain transfer agents in aqueous addition polymerizations.The polymers are useful as mineral dispersants, as water-treatment additives for boiler waters, cooling towers, reverse osmosis applications, sugar refining, paper production, geothermal processes and oil wells, and as detergent additives acting as builders, anti-filminig agents, dispersants, sequestering agents and encrustation inhibitors.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: July 20, 1999
    Assignee: Rohm and Haas Company
    Inventors: Zhenwen Fu, Lorraine Holowach Keller, Barry Weinstein