Walter R Brown

US Patent:

44271166, Jan 24, 1984

Filed:

Feb 8, 1982

Appl. No.:

6/346742

Inventors:

Walter L. Brown - Alexandria VA

International Classification:

B65D 8556

US Classification:

206530

Abstract:

A prdetermined amount of toothpaste sufficient for a single brushing of the teeth is encapsulated with a covering which is easily storable, non-toxic and easily breakable when chewed or bitten.

US Patent:

RE331619, Feb 6, 1990

Filed:

Mar 2, 1988

Appl. No.:

7/163014

Inventors:

Walter E. Brown - Rockville MD
Laurence C. Chow - Potomac MD

Assignee:

American Dental Association Health Foundation - Gaithersburg MD

International Classification:

C01B 2532
A61K 600

US Classification:

423308

Abstract:

Dental restorative compositions containing a mixture of Ca. sub. 4 (PO. sub. 4). sub. 2 O and at least one different calcium phosphate.

US Patent:

41018249, Jul 18, 1978

Filed:

Oct 12, 1976

Appl. No.:

5/731592

Inventors:

Harold W. Breedlove - Woodbridge VA
Walter L. Brown - Alexandria VA

Assignee:

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

International Classification:

G01R 31024

US Classification:

324 20R

Abstract:

A test assembly and wafer tube holder are provided to permit comparative ts of each elemental surface portion of a tube target as a function of position thereon and as a function of the lifetime of the tube.

US Patent:

45184305, May 21, 1985

Filed:

Oct 6, 1983

Appl. No.:

6/539740

Inventors:

Walter E. Brown - Rockville MD
Laurence C. Chow - Germantown MD

Assignee:

American Dental Association Health Foundation - Washington DC

International Classification:

C09K 300

US Classification:

106 35

Abstract:

Compositions that are useful and unique as dental remineralizers and dental cements, as well as methods for their use, are disclosed. The compositions are mixtures of at least two sparingly soluble calcium phosphates that are present in excess and a dilute aqueous solution approximately saturated with respect to the calcium phosphates such that they are both in near equilibrium with the saturated solution. The saturated solution is also supersaturated with respect to hydroxyapatite. Therefore, this basic constituent of dental enamel is continuously precipitated from the saturated solution and is available for the remineralization of The invention described herein was made in the course of research partially supported by a grant from the National Institute of Dental Research.

US Patent:

46120530, Sep 16, 1986

Filed:

May 9, 1985

Appl. No.:

6/732515

Inventors:

Walter E. Brown - Rockville MD
Laurence C. Chow - Germantown MD

Assignee:

American Dental Association Health Foundation - Washington DC

International Classification:

C09K 300

US Classification:

706 35

Abstract:

Dental restorative compositions containing a mixture of Ca. sub. 4 (PO. sub. 4). sub. 2 O and at least one different calcium phosphate.

US Patent:

45565619, Dec 3, 1985

Filed:

Feb 5, 1985

Appl. No.:

6/698314

Inventors:

Walter E. Brown - Rockville MD
Laurence C. Chow - Gaithersburg MD

Assignee:

American Dental Association Health Foundation - Washington DC

International Classification:

A61K 718
A61K 3316
A61K 3342

US Classification:

424151

Abstract:

Solutions, gels, and substantially nonaqueous dispersions that form dicalcium phosphate dihydrate under appropriate conditions are disclosed, as well as methods for their use. These compositions are useful in topically fluoridating and/or mineralizing dental tissue, such as enamel, dentin, and exposed root surfaces. The incorporated fluoride is in the form of Ca. sub. 5 (PO. sub. 4). sub. 3 F and is more permanently retained than CaF. sub. 2 and other fluoridation products.

US Patent:

RE332216, May 22, 1990

Filed:

May 18, 1987

Appl. No.:

7/051739

Inventors:

Walter E. Brown - Rockville MD
Laurence C. Chow - Potomac MD

Assignee:

American Dental Association Health Foundation - Washington DC

International Classification:

C01B 2532
C09K 300

US Classification:

423308

Abstract:

Compositions that are useful and unique as dental remineralizers and dental cements, as well as methods for their use, are disclosed. The compositions are mixtures of at least two sparingly soluble calcium phosphates that are present in excess and a dilute aqueous solution approximately saturated with The invention described herein was made in the course of research partially supported by a grant from the National Institute of Dental Research.