Kwaku Ofosu Temeng

US Patent:

55502385, Aug 27, 1996

Filed:

Aug 23, 1995

Appl. No.:

8/518435

Inventors:

George C. Chiang - Wilmington DE
Richard F. Davis - Newark DE
Kwaku O. Temeng - Wilmington DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

C07D25142
C07D25148
C07D23942
C07D23948

US Classification:

544211

Abstract:

This invention relates to a process for preparing sulfonylureas comprising reacting a sulfonyl chloride with a cyanate salt and an amine base in the presence of an inert aprotic solvent to give an isocyanate complex which is then reacted with an amino heterocycle to form the sulfonylurea product and a process for converting the crystal form of the prepared sulfonylurea product to a more stable crystal product form.

US Patent:

20220346470, Nov 3, 2022

Filed:

Jul 20, 2022

Appl. No.:

17/868891

Inventors:

Kwaku TEMENG - Wilmington DE, US

International Classification:

A41D 13/002

Abstract:

To pump-condition a garment that covers at least a portion of an individual, at least one fluid-circulating vent panel circulates a fluid adjacent the garment in an effort to condition the individual. A pump provides a motive force to circulate the circulating fluid through each vent panel. A circulation layer within the vent panel defines a plurality of channels therethrough. The channels allow the circulating fluid to pass both laterally through an opening in a peripheral edge of the vent panel and directly through a diffusing layer of the vent panel.

US Patent:

20210000195, Jan 7, 2021

Filed:

Jul 3, 2019

Appl. No.:

16/502854

Inventors:

Kwaku TEMENG - Wilmington DE, US

International Classification:

A41D 13/005

Abstract:

To pump-condition a garment that covers at least a portion of an individual, at least one fluid-circulating vent panel circulates a fluid adjacent the garment in an effort to condition the individual. A pump provides a motive force to circulate the circulating fluid through each vent panel, and a conduit is routed within the garment and couples the pump and each vent panel. A controller controls the pump to provide the motive force, and a power source provides power to operate the pump and the controller. The pump may be an ultrasonic piezoelectric pump.