Patents by Inventor James E. Whitten

James E. Whitten 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: 9310309
    Abstract: Processes of detecting the presence of an environmental challenge such as contact with an acidic/acid-forming and/or oxidizable gas are provided whereby a metal oxyhydroxide is used as a detection agent. The metal oxyhydroxide will irreversibly interact with an acidic/acid-forming and/or oxidizable gas causing a red-stretch of the emission spectra. This red-stretch alters the ratio of emission intensities at higher wavelengths relative to lower wavelengths. A reduced post-exposure photoluminescence ratio is, therefore, used to detect exposure to such a gas or environmental challenge. The materials and processes may be used as a residual life indicator for filtration systems or for the detection of environmental challenges.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: April 12, 2016
    Assignee: The United States of America, as Represented by the Secretary of the Army
    Inventors: Gregory W. Peterson, James E Whitten, Evan J. Watters
  • Patent number: 6372805
    Abstract: Colloids comprising amorphous borosilicate particles, wherein said borosilicate particles are not borosilicate glass; are described and claimed. These colloids have been found to be useful in aqueous systems, specially in papermaking.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: April 16, 2002
    Assignee: Nalco Chemical Company
    Inventors: Bruce A. Keiser, James E. Whitten
  • Patent number: 6361653
    Abstract: The invention comprises a borosilicate retention aid composition and a method for improving the production of paper by addition of the borosilicate. The borosilicate may be utilized in conjunction with a high molecular weight synthetic flocculent and/or starch, with or without the addition of a cationic coagulant. The borosilicate material is preferably a colloidal borosilicate. Methods for the preparation of the borosilicate material are disclosed.
    Type: Grant
    Filed: April 22, 2001
    Date of Patent: March 26, 2002
    Assignee: Nalco Chemical Company
    Inventors: Bruce A. Keiser, James E. Whitten
  • Patent number: 6361652
    Abstract: The invention comprises a borosilicate retention aid composition and a method for improving the production of paper by addition of the borosilicate. The borosilicate may be utilized in conjunction with a high molecular weight synthetic flocculant and/or starch, with or without the addition of a cationic coagulant. The borosilicate material is preferably a colloidal borosilicate. Methods for the preparation of the borosilicate material are disclosed.
    Type: Grant
    Filed: April 22, 2001
    Date of Patent: March 26, 2002
    Assignee: Nalco Chemical Company
    Inventors: Bruce A. Keiser, James E. Whitten
  • Patent number: 6358364
    Abstract: The invention comprises a borosilicate retention aid composition and a method for improving the production of paper by addition of the borosilicate. The borosilicate may be utilized in conjunction with a high molecular weight synthetic flocculant and/or starch, with or without the addition of a cationic coagulant. The borosilicate material is preferably a colloidal borosilicate. Methods for the preparation of the borosilicate material are disclosed.
    Type: Grant
    Filed: April 22, 2001
    Date of Patent: March 19, 2002
    Assignee: Nalco Chemical Company
    Inventors: Bruce A. Keiser, James E. Whitten
  • Patent number: 6310104
    Abstract: The invention comprises a borosilicate retention aid composition and a method for improving the production of paper by addition of the borosilicate. The borosilicate may be utilized in conjunction with a high molecular weight synthetic flocculant and/or starch, with or without the addition of a cationic coagulant. The borosilicate material is preferably a colloidal borosilicate. Methods for the preparation of the borosilicate material are disclosed.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: October 30, 2001
    Assignee: Nalco Chemical Company
    Inventors: Bruce A. Keiser, James E. Whitten
  • Publication number: 20010030032
    Abstract: The invention comprises a borosilicate retention aid composition and a method for improving the production of paper by addition of the borosilicate. The borosilicate may be utilized in conjunction with a high molecular weight synthetic flocculant and/or starch, with or without the addition of a cationic coagulant. The borosilicate material is preferably a colloidal borosilicate. Methods for the preparation of the borosilicate material are disclosed.
    Type: Application
    Filed: April 22, 2001
    Publication date: October 18, 2001
    Inventors: Bruce A. Keiser, James E. Whitten
  • Publication number: 20010023753
    Abstract: The invention comprises a borosilicate retention aid composition and a method for improving the production of paper by addition of the borosilicate. The borosilicate may be utilized in conjunction with a high molecular weight synthetic flocculant and/or starch, with or without the addition of a cationic coagulant. The borosilicate material is preferably a colloidal borosilicate. Methods for the preparation of the borosilicate material are disclosed.
    Type: Application
    Filed: April 22, 2001
    Publication date: September 27, 2001
    Inventors: Bruce A. Keiser, James E. Whitten
  • Publication number: 20010023752
    Abstract: The invention comprises a borosilicate retention aid composition and a method for improving the production of paper by addition of the borosilicate. The borosilicate may be utilized in conjunction with a high molecular weight synthetic flocculant and/or starch, with or without the addition of a cationic coagulant. The borosilicate material is preferably a colloidal borosilicate. Methods for the preparation of the borosilicate material are disclosed.
    Type: Application
    Filed: April 22, 2001
    Publication date: September 27, 2001
    Inventors: Bruce A. Keiser, James E. Whitten
  • Patent number: 6270627
    Abstract: The invention comprises a borosilicate retention aid composition and a method for improving the production of paper by addition of the borosilicate. The borosilicate may be utilized in conjunction with a high molecular weight synthetic flocculant and/or starch, with or without the addition of a cationic coagulant. The borosilicate material is preferably a colloidal borosilicate. Methods for the preparation of the borosilicate material are disclosed.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: August 7, 2001
    Assignee: Nalco Chemical Company
    Inventors: Bruce A. Keiser, James E. Whitten
  • Patent number: 6255118
    Abstract: A solid-state fluorometry instrument is provided. The instrument is based on either diode laser or light-emitting diode (LED) excitation sources that are capable of being used in a wide range of applications. The solid-state diode laser based fluorometer instrument monitors fluorescent tracers, particularly suitable for industrial water sample stream applications. Using the instrument, a solid-state diode laser or light-emitting diode (LED) is used as an excitation source to excite fluorescent tracer molecules. The fluorescence resulting from the diode laser excitation is imaged with a lens onto a silicon photodiode detector. An optical filter is placed between the sample cell and the photodiode detector to reject scattered laser light. The output from the photodiode is amplified to produce an output voltage proportional to the quantity of fluorescence striking the photodiode detector.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: July 3, 2001
    Assignee: Nalco Chemical Company
    Inventors: Joseph C. Alfano, Michael J. Fehr, Martin R. Godfrey, John E. Hoots, Karen R. Tubergen, James E. Whitten, Narasimha M. Rao
  • Patent number: 6060318
    Abstract: The present invention provides for an improved method for monitoring the concentration of molecules and chemical treatment agents in ceramic slurries and powders.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: May 9, 2000
    Assignee: Nalco Chemical Company
    Inventors: Kevin J. Moeggenborg, James E. Whitten, Joseph C. Alfano