Christopher P Rhodes

US Patent:

7892408, Feb 22, 2011

Filed:

Nov 6, 2007

Appl. No.:

11/935657

Inventors:

Christopher P. Rhodes - College Station TX, US
Charles L. K. Tennakoon - Coppel TX, US
Waheguru Pal Singh - College Station TX, US
Kelvin C. Anderson - Flynn TX, US

Assignee:

Lynntech, Inc. - College Station TX

International Classification:

C25B 11/06
H01M 4/137
H01M 4/02
H01M 4/04
H01M 4/1399

US Classification:

204283, 204252, 204253, 429534, 429535, 429523, 429530, 429531, 429532, 429452, 429471, 429483, 429480, 429481, 429482, 429484, 429492, 429493, 429494

Abstract:

A cathodic gas diffusion electrode for the electrochemical production of aqueous hydrogen peroxide solutions. The cathodic gas diffusion electrode comprises an electrically conductive gas diffusion substrate and a cathodic electrocatalyst layer supported on the gas diffusion substrate. A novel cathodic electrocatalyst layer comprises a cathodic electrocatalyst, a substantially water-insoluble quaternary ammonium compound, a fluorocarbon polymer hydrophobic agent and binder, and a perfluoronated sulphonic acid polymer. An electrochemical cell using the novel cathodic electrocatalyst layer has been shown to produce an aqueous solution having between 8 and 14 weight percent hydrogen peroxide. Furthermore, such electrochemical cells have shown stable production of hydrogen peroxide solutions over 1000 hours of operation including numerous system shutdowns.

US Patent:

20050042280, Feb 24, 2005

Filed:

Dec 26, 2002

Appl. No.:

10/498801

Inventors:

Tracey Rogers - Boyds MD, US
Jeffrey Williamson - Greenville NC, US
Christopher Rhodes - San Diego CA, US

International Classification:

A61K031/66
A61K009/20

US Classification:

424464000, 514129000, 514018000, 514474000, 514566000, 514574000

Abstract:

The present invention is directed to aqueous based formulations of water-soluble prodrugs of propofol. The formulations comprise in aqueous medium an effective amount of the water-soluble prodrug of propofol and an effective amount of an antioxidant. In one embodiment, the formulation also contains a tonicity modifier. The formulations are particularly useful as intravenous injections. The formulations preferably are buffered to a pH suitable for minimizing degradation of the prodrug during storage. Advantageously, the formulations can be prepared without the use of harmful co-solvents or surfactants, and are stable at room temperature over extended periods of time.

US Patent:

56037902, Feb 18, 1997

Filed:

Oct 21, 1994

Appl. No.:

8/327532

Inventors:

Christopher J. Rhodes - Oklahoma City OK

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B29C 5340

US Classification:

156137

Abstract:

Process and apparatus for fabricating belts are disclosed. The process includes conveying the leading edge of a flexible web from a supply roll past a slitting station, slitting the web a predetermined distance from the leading edge to form a web segment having the leading edge at one end and a trailing edge at the opposite end, maintaining the web slack at the location where the web is slit during slitting, overlapping the leading edge and the trailing edge of the web segment to form a joint and welding the joint to permanently join the leading edge and the trailing edge together to form a belt. The apparatus includes means to convey the leading edge of a flexible web from a supply roll past a slitting station, means at the slitting station to slit the web a predetermined distance from the leading edge to form a web segment having the leading edge at one end and a trailing edge at the opposite end, means to maintain the web slack at the location where the web is slit during slitting, means to overlap the leading edge and the trailing edge of the web segment to form a joint and means to weld the joint to permanently join the leading edge and the trailing edge together to form a belt.