Benjamin Peter Warner

US Patent:

6583425, Jun 24, 2003

Filed:

May 13, 1999

Appl. No.:

09/312753

Inventors:

Benjamin P. Warner - Los Alamos NM

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

G01T 104

US Classification:

2504721

Abstract:

The present invention provides a method for detecting ionizing radiation. Exposure of silver salt AgX to ionizing radiation results in the partial reduction of the salt to a mixture of silver salt and silver metal. The mixture is further reduced by a reducing agent, which causes the production of acid (HX) and the oxidized form of the reducing agent (R). Detection of HX indicates that the silver salt has been exposed to ionizing radiation. The oxidized form of the reducing agent (R) may also be detected. The invention also includes dosimeters employing the above method for detecting ionizing radiation.

US Patent:

6627891, Sep 30, 2003

Filed:

Jan 28, 2002

Appl. No.:

10/059470

Inventors:

Benjamin P. Warner - Los Alamos NM
Thomas A. Lopez - Los Alamos NM

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

G01T 111

US Classification:

250337, 2504845, 2504851

Abstract:

The invention includes a temporal dosimeter. One dosimeter embodiment includes a housing that is opaque to visible light but transparent to ionizing radiation. The dosimeter also includes a sensor for recording dosages of ionizing radiation, a drive mechanism, a power source, and rotatable shields that work together to produce a compound aperture to unveil different portions of the sensor at different times to ionizing radiation. Another dosimeter embodiment includes a housing, a sensor, a shield with an aperture portion, and a linear actuator drive mechanism coupled to the sensor for moving the sensor past the aperture portion. The sensor turns as it moves past the aperture, tracing a timeline record of exposure to ionizing radiation along a helical path on the sensor.

US Patent:

6853472, Feb 8, 2005

Filed:

Jun 20, 2003

Appl. No.:

10/600807

Inventors:

Benjamin P. Warner - Los Alamos NM, US
T. Mark McCleskey - Los Alamos NM, US
Anoop Agrawal - Tucson AZ, US
John P. Cronin - Tucson AZ, US
Juan C. L. Tonazzi - Tucson AZ, US
Anthony K. Burrell - Los Alamos NM, US

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

G02F001/153
G02F001/15
H01B001/00
C08F004/06
H01M006/18

US Classification:

359270, 359265, 359275, 252500, 252600, 252 622, 526120, 525259, 429307, 544347, 546257

Abstract:

Electrolyte solutions of soluble bifunctional redox dyes in molten salt solvent may be used to prepare electrooptic devices with enhanced stability toward ultraviolet radiation. The solvents include lithium or quaternary ammonium cations, and perfluorinated sulfonylimide anions selected from trifluoromethylsulfonate (CFSO), bis(trifluoromethylsulfonyl)imide ((CFSO)N), bis(perfluoroethylsulfonyl)imide ((CFCFSO)N) and tris(trifluoromethylsulfonyl)methide ((CFSO)C).

US Patent:

6858148, Feb 22, 2005

Filed:

Jul 16, 2003

Appl. No.:

10/621825

Inventors:

Benjamin P. Warner - Los Alamos NM, US
George J. Havrilla - Los Alamos NM, US
Thomasin C. Miller - Los Alamos NM, US
Cyndi A. Wells - Los Alamos NM, US

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

B01D015/08

US Classification:

210656, 2101982, 436 56, 436 58, 435 71, 378 46

Abstract:

The method for screening binding between a target binder and potential pharmaceutical chemicals involves sending a solution (preferably an aqueous solution) of the target binder through a conduit to a size exclusion filter, the target binder being too large to pass through the size exclusion filter, and then sending a solution of one or more potential pharmaceutical chemicals (preferably an aqueous solution) through the same conduit to the size exclusion filter after target binder has collected on the filter. The potential pharmaceutical chemicals are small enough to pass through the filter. Afterwards, x-rays are sent from an x-ray source to the size exclusion filter, and if the potential pharmaceutical chemicals form a complex with the target binder, the complex produces an x-ray fluorescence signal having an intensity that indicates that a complex has formed.

US Patent:

6862125, Mar 1, 2005

Filed:

May 5, 2003

Appl. No.:

10/430780

Inventors:

Benjamin P. Warner - Los Alamos NM, US
T. Mark McCleskey - Los Alamos NM, US
Anthony K. Burrell - Los Alamos NM, US
Simon B. Hall - Palmerston North, NZ

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

G02F001/15
G02F001/00
G02F001/29
G02F001/153

US Classification:

359265, 359321, 359318, 359270, 359272

Abstract:

A single-compartment reversible mirror device having a solution of aprotic molten salt, at least one soluble metal-containing species comprising metal capable of being electrodeposited, and at least one anodic compound capable of being oxidized was prepared. The aprotic molten salt is liquid at room temperature and includes lithium and/or quaternary ammonium cations, and anions selected from trifluoromethylsulfonate (CFSO), bis(trifluoromethylsulfonyl)imide ((CFSO)N), bis(perfluoroethylsulfonyl)imide ((CFCFSO)N) and tris(trifluoromethylsulfonyl)methide ((CFSO)C). A method for preparing substantially pure molten salts is also described.

US Patent:

6961168, Nov 1, 2005

Filed:

Dec 19, 2003

Appl. No.:

10/741903

Inventors:

Anoop Agrawal - Tucson AZ, US
John P. Cronin - Tucson AZ, US
Juan C. L. Tonazzi - Tucson AZ, US
Benjamin P. Warner - Los Alamos NM, US
T. Mark McCleskey - Los Alamos NM, US
Anthony K. Burrell - Los Alamos NM, US

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

G02F001/153
G02F001/00
G02B005/23

US Classification:

359273, 359270, 359321, 252583, 252586

Abstract:

Electrolyte solutions for electrochromic devices such as rear view mirrors and displays with low leakage currents are prepared using inexpensive, low conductivity conductors. Preferred electrolytes include bifunctional redox dyes and molten salt solvents with enhanced stability toward ultraviolet radiation. The solvents include lithium or quaternary ammonium cations, and perfluorinated sulfonylimide anions selected from trifluoromethylsulfonate (CFSO), bis(trifluoromethylsulfonyl)imide ((CFSO)N), bis(perfluoroethylsulfonyl)imide ((CFCFSO)N) and tris(trifluoromethylsulfonyl)methide ((CFSO)C). Electroluminescent, electrochromic and photoelectrochromic devices with nanostructured electrodes include ionic liquids with bifunctional redox dyes.

US Patent:

7064212, Jun 20, 2006

Filed:

Jun 20, 2002

Appl. No.:

10/177400

Inventors:

Anthony K. Burrell - Los Alamos NM, US
Benjamin P. Warner - Los Alamos NM, US
T. Mark McClesky - Los Alamos NM, US

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

C07D 213/22

US Classification:

546258, 546257

Abstract:

Electrochromic salts. Electrochromic salts of dicationic viologens such as methyl viologen and benzyl viologen associated with anions selected from bis(trifluoromethylsulfonyl)imide, bis(perfluoroethylsulfonyl)imide, and tris(trifluoromethylsulfonyl)methide are produced by metathesis with the corresponding viologen dihalide. They are highly soluble in molten quarternary ammonium salts and together with a suitable reductant provide electrolyte solutions that are used in electrochromic windows.

US Patent:

7119937, Oct 10, 2006

Filed:

Jan 20, 2005

Appl. No.:

11/041069

Inventors:

Benjamin P. Warner - Los Alamos NM, US
T. Mark McCleskey - Los Alamos NM, US
Anthony K. Burrell - Los Alamos NM, US

Assignee:

The Regents of the University of California - Los Alamos NM

International Classification:

G02F 1/153
G02F 1/07
G02F 1/68
G03G 17/04

US Classification:

359272, 359253, 210749, 430 34

Abstract:

Electrolyte solutions for electrochromic devices such as rear view mirrors and displays with low leakage currents are prepared using inexpensive, low conductivity conductors. Preferred electrolytes include bifunctional redox dyes and molten salt solvents with enhanced stability toward ultraviolet radiation. The solvents include lithium or quaternary ammonium cations, and perfluorinated sulfonylimide anions selected from trifluoromethylsulfonate (CFSO), bis(trifluoromethylsulfonyl)imide ((CFSO)N), bis(perfluoroethylsulfonyl)imide ((CFCFSO)N) and tris(trifluoromethylsulfonyl)methide ((CFSO)C). Electroluminescent, electrochromic and photoelectrochromic devices with nanostructured electrodes include ionic liquids with bifunctional redox dyes.