Chel Wing Lew

US Patent:

51815052, Jan 26, 1993

Filed:

Jun 28, 1991

Appl. No.:

7/726628

Inventors:

Chel W. Lew - San Antonio TX
Thomas B. Aufdemorte - San Antonio TX
Howard S. McGuff - San Antonio TX
Gerald L. Alderson - San Antonio TX

International Classification:

A61M 1600

US Classification:

12820026

Abstract:

An apparatus (10) for dispensing a medicament such as an antibiotic in the upper aerodigestive tract of an intubated patient (22). The apparatus (10) is a generally ovoid body (12) comprised of a substrate which can be polymeric, natural or synthetic woven or spun fiber, a gel, or other substance capable of being impregnated with the medicament and then releasing the medicament when contacted by an aqueous solution, specifically, the saliva of patient (22). Body (12) is shaped with rounded tapered surfaces (30) and ends (26) for engaging the mucosa of the alveolar ridge (32) and palate (20) of patient (22) to stabilize the apparatus (10) in the oral cavity (24). A channel (38) is provided for passage of the tube (40) of an endotracheal tube (36) therethrough which cooperates with the surfaces (30) and ends (26) to stabilize both endotracheal tube (36) and body (12) in the oral cavity (24).

US Patent:

53646347, Nov 15, 1994

Filed:

Nov 8, 1991

Appl. No.:

7/790639

Inventors:

Chel W. Lew - San Antonio TX

Assignee:

Southwest Research Institute - San Antonio TX

International Classification:

A61K 948

US Classification:

424451

Abstract:

A capsule and method for delivery for an active ingredient in the oral cavity that has a pH sensitive encapsulant shell and is associated with an adhesive. The pH sensitive shell dissolves at a pH in the oral cavity while the adhesive allows dissolution at the selected tissue.

US Patent:

60569921, May 2, 2000

Filed:

Jun 15, 1993

Appl. No.:

8/076709

Inventors:

Chel W. Lew - San Antonio TX

Assignee:

Campbell Soup Company - Camden NJ

International Classification:

A23L 1237

US Classification:

426649

Abstract:

Edible microcapsules and a process for recovering them are disclosed. The microcapsules include a shell material that has a thermal gelation temperature within the range from about 90. degree. F. to about 160. degree. F. The encapsulated material is a food additive which is protected from degradation and loss during the processing at relatively high temperatures of food products. The invention is particularly useful for additives to liquid-based foods such as soups, stews, and sauces.

US Patent:

52925331, Mar 8, 1994

Filed:

Mar 27, 1992

Appl. No.:

7/858130

Inventors:

William A. McMahon - San Antonio TX
Chel W. Lew - San Antonio TX
Keith L. Branly - Brandon FL

Assignee:

Micro Flo Co. - Mulberry FL

International Classification:

A01N 2528

US Classification:

424408

Abstract:

Microcapsules are prepared by encapsulating a core material with a capsule shell wall containing glutamldehyde crosslinked gelatin and at least one water soluble plasticizer that reduces the permeability of the Crosslinked gelatin. Optionally, the capsule shell wall also contains a feeding deterrent that dissuades accidental ingestion of the microcapsule. Upon exposing the microcapsules to water, the plasticizer is removed malting the shell wall permeable whereby the encapsulated core material is released. Materials such as insecticides, herbicides, plant growth regulating agents, and fungicides may be encapsulated and released at a controlled location, time and rate.

US Patent:

56539738, Aug 5, 1997

Filed:

Aug 16, 1996

Appl. No.:

8/699624

Inventors:

Chel W. Lew - San Antonio TX
Keith Branly - Brandon FL
Jesse Gaytan - Valdosta GA
Osborn Jones Turner - Lakeland FL

Assignee:

Micro Flo Company - Mulberry FL

International Classification:

A01N 2508
A01N 2520
A01N 2522
A01N 3304

US Classification:

424 84

Abstract:

Baits useful for controlling lepidoptera populations is made with (a) a diet component for lepidoptera; (b) a toxicant; (c) a chemiluminescent, visual attractant and (d) an encapsulating agent that will allow moisture to permeate and form an external condensate of said diet and said toxicant. The diet, toxicant, and chemiluminescent visual attractant can be used in the same bait particle in a homogeneous or layered structure. Alternatively, the diet/toxicant may be used with a first encapsulating agent in a first bait particle with the chemiluminescent, visual attractant encapsulated in a second bait particle and distributed among the diet/toxicant bait particles.

US Patent:

56098804, Mar 11, 1997

Filed:

Jun 6, 1995

Appl. No.:

8/471630

Inventors:

Derrill Munson - Pittsboro NC
Chel W. Lew - San Antonio TX
James M. Gaggero - Citrus Heights CA
Keith Branly - Brandon FL

Assignee:

Micro Flo Company - Mulberry FL

International Classification:

A01N 2512

US Classification:

424410

Abstract:

Baits useful against diabroticine mature and immature beetles contain (a) an insecticide and (b) a feeding stimulant containing corn germ.

US Patent:

52719340, Dec 21, 1993

Filed:

Oct 19, 1992

Appl. No.:

7/963226

Inventors:

Marvin E. Goldberg - Marlboro NJ
David M. Kellner - Hollis NY
Chel W. Lew - San Antonio TX
Cathy S. Lamb - San Antonio TX

Assignee:

Revlon Consumer Products Corporation - New York NY

International Classification:

A61K 732
A61K 950

US Classification:

424401

Abstract:

Microencapsulates containing antiperspirant salts, microencapsulates in conjunction with bioadhesives, and antiperspirant/deodorant compositions containing the microencapsulates of the invention.

US Patent:

50646508, Nov 12, 1991

Filed:

Apr 4, 1989

Appl. No.:

7/333189

Inventors:

Chel W. Lew - San Antonio TX

Assignee:

Southwest Research Institute - San Antonio TX

International Classification:

A61K 956
A61K 960

US Classification:

424435

Abstract:

A salt sensitive capsule has been developed which dissolves in the mouth and releases the encapsulated internal ingredient(s). The outer salt sensitive shell maintains its integrity when kept at a preselected aqueous salt concentrations. When introduced into the mouth, the degree of salinity is lower and causes the sheel to disassociated and release the internal component. The capsules may be associated with an adhesive system so that the capsules are topically applied to mouth tissue. The adhesive system is compatible with maintanance of the salt sensitive shell.