Raj R Gupta

US Patent:

6672323, Jan 6, 2004

Filed:

Oct 15, 1998

Appl. No.:

09/173272

Inventors:

Raj Kumar Gupta - Walkersville MD
Young Woo Yoon - Glenview IL

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

E04H 1540

US Classification:

135126, 135128, 135137, 135905, 2 89

Abstract:

The self-erecting structure has resilient lower and upper support loops which provide it with shape and support. Fabric covers the support loops, and is permanently affixed to the support loops. The fabric has a lower, waterproof portion and an upper insect protection portion. The fabric is preferably treated to provide it with insect repellent and insecticide properties. The support loops are made of flexible, resilient rods made of a material, such as a vinylester and fiberglass combination having a diameter selected to enable the support loops to be folded into six loops, whereby the structure can be compactly stored in a rucksack. The method of folding the structure so that it can be stored in such a compact space is also disclosed.

US Patent:

7498331, Mar 3, 2009

Filed:

Nov 6, 2003

Appl. No.:

10/701565

Inventors:

Raj K. Gupta - Walkersville MD, US
Apurba K. Bhattacharjee - Silver Spring MD, US
Donna Ma Lee - Potomac MD, US

Assignee:

United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

A01N 43/60

US Classification:

5142521, 424 43, 424 59, 424 69, 424401, 424403, 424405, 424409, 424411, 424412, 424DIG 10, 514844, 514919, 514945, 514953

Abstract:

Disclosed herein is a pharmacophore model for arthropod repellent activity and methods of making and using thereof. The pharmacophore comprises two hydrophobic aliphatic functions, one aromatic function and one hydrogen bond acceptor function. The pharmacophore model was made using a test set of arthropod repellent compounds. Also disclosed are arthropod repellent compounds identified by screening databases with the pharmacophore model. Also disclosed are methods of repelling arthropods from a surface or area. Compositions and formulations comprising the compounds of the present invention as well as objects having the compounds of the present invention are disclosed.

US Patent:

7897162, Mar 1, 2011

Filed:

Dec 24, 2008

Appl. No.:

12/343562

Inventors:

Raj K. Gupta - Walkersville MD, US
Apurba K. Bhattacharjee - Silver Spring MD, US
Donna Ma Lee - Potomac MD, US

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

A01N 25/08

US Classification:

424411, 424 47, 424 59, 424403, 424412, 424413, 424414, 424415, 424416, 514622, 514678, 514919

Abstract:

Disclosed herein is a pharmacophore model for arthropod repellent activity and methods of making and using thereof. The pharmacophore comprises two hydrophobic aliphatic functions, one aromatic function and one hydrogen bond acceptor function. The pharmacophore model was made using a test set of arthropod repellent compounds. Also disclosed are arthropod repellent compounds identified by screening databases with the pharmacophore model. Also disclosed are methods of repelling arthropods from a surface or area. Compositions and formulations comprising the compounds of the present invention as well as objects having the compounds of the present invention are disclosed.

US Patent:

50742477, Dec 24, 1991

Filed:

Feb 11, 1991

Appl. No.:

7/652857

Inventors:

Raj K. Gupta - Walkersville MD
Louis C. Rutledge - Mill Valley CA
William J. Letourneau - Grafton MA

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

A01K 2900

US Classification:

119 65

Abstract:

An insect containing test apparatus which is applied to a skin region of a est subject includes a rectangular slide and test cage made of a clear, autoclavable polycarbonate plastic. The test cage is injection molded to a generally rectangular shape and includes a peripheral flange extending outwardly from sides at an open top. A screen member covering the open top is then heat pressed onto this flange. Test holes are also punched into the bottom the test cage. During injection molding, U-shaped channels along each respective longitudinal side adjacent the bottom are also provided to receive the slide so that the slide is selectively moved to cover and uncover the test holes in the bottom.