Ronald G Price

US Patent:

6401816, Jun 11, 2002

Filed:

Mar 3, 2000

Appl. No.:

09/518133

Inventors:

Ronald R. Price - Stevensville MD
Robert David Eden - Manchester, GB
Bruce P. Gaber - Bethesda MD

Assignee:

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

International Classification:

A01N 2508

US Classification:

166279, 166310

Abstract:

A method for delivering encapsulated materials to a subsurface environment, for the treatment of the subsurface environment, has the steps of: (a) loading the lumen of hollow microtubules with an active agent selected for treating the subsurface environment, where the hollow microtubules are compatible with the subsurface environment; and (b) administering the hollow microtubules to the subsurface environment, permitting the controlled release of the active agent into the subsurface environment. This method may be practiced using a slurry of hollow microtubules, where the lumen of these microtubules is loaded with an agent for the treatment of petroleum well environments, and where these loaded microtubules are dispersed in a liquid phase carrier selected from aqueous carriers, non-aqueous carriers, and emulsions of aqueous and non-aqueous materials. This method may also be practiced using a pill made of a consolidated mass of tubules loaded with one or more active agents, typically bound with a binder.

US Patent:

7670651, Mar 2, 2010

Filed:

Jun 4, 2004

Appl. No.:

10/863848

Inventors:

Ronald R. Price - Stevensville MD, US
Paul E. Schoen - Alexandria VA, US
Joel M. Schnur - Burke VA, US
Anne W. Kusterbeck - Annadale VA, US

Assignee:

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

International Classification:

C08K 3/08

US Classification:

4274211, 524439, 427180, 4283133

Abstract:

A composition is provided having cylindrically shaped metal or metal-coated particles and a polymer latex dispersion. A coating is provided having cylindrically shaped metal or metal-coated particles and a polymer matrix formed from a latex dispersion. The particles form a continuous, conductive network. A method of electromagnetic shielding is provided having the steps of providing the above composition, applying the composition to a surface, and drying the applied composition.

US Patent:

20010026802, Oct 4, 2001

Filed:

May 21, 2001

Appl. No.:

09/860634

Inventors:

Ronald Price - Stevensville MD, US
Joel Schnur - Burke VA, US
Paul Schoen - Alexandria VA, US
Mary Testoff - Greenbelt MD, US
Jacque Georger - Springfield VA, US
Alan Rudolph - Bowie MD, US
Robert Brady - Gaithersburg MD, US

Assignee:

GEO-CENTERS, INC. - NEWTON CENTRE MA

International Classification:

A01N025/00
A01N025/26
A01N025/28

US Classification:

424/405000, 424/417000, 424/450000

Abstract:

Tubules which contain an active agent in their lumen and compositions containing such microtubules are effective for providing a slow, controlled release of the active agent. Such microtubules are useful in the production of coating compositions for the protection of surfaces coming into contact with water, adhesive resins for the production of laminated wood products, and devices for dispensing pesticides.

US Patent:

20020142022, Oct 3, 2002

Filed:

Feb 19, 2002

Appl. No.:

10/076368

Inventors:

Ronald Price - Stevensville MD, US
Joel Schnur - Burke VA, US
Paul Schoen - Alexandria VA, US
Mary Testoff - Greenbelt MD, US
Jacque Georger - Springfield VA, US
Alan Rudolph - Bowie MD, US
Robert Brady - Gaithersburg MD, US

Assignee:

GEO-CENTERS, INC. - NEWTON CENTRE MA

International Classification:

A01N025/00
A01N025/26
A01N025/28

US Classification:

424/405000, 424/417000, 424/450000

Abstract:

Tubules which contain an active agent in their lumen and compositions containing such microtubules are effective for providing a slow, controlled release of the active agent. Such microtubules are useful in the production of coating compositions for the protection of surfaces coming into contact with water, adhesive resins for the production of laminated wood products, and devices for dispensing pesticides.

US Patent:

20060062840, Mar 23, 2006

Filed:

Aug 29, 2005

Appl. No.:

11/215199

Inventors:

Ronald Price - Stevensville MD, US
Joel Schnur - Burke VA, US
Banahalli Ratna - Springfield VA, US
Mark Spector - Alexandria VA, US

International Classification:

A61K 9/127
B29B 15/00

US Classification:

424450000, 264349000

Abstract:

The wall thickness of lipid microtubules are controlled by selecting a methanol/water system and determining the required amount of a lipid to form the desired wall thickness. The lipid is dissolved in a small portion of the heated methanol and that clear solution is added to the remaining amount of the heated methanol/water system. By slowly cooling the solution, microtubules are formed which have the desired wall thickness. Preferred microtubules have a wall thickness of just 2 bilayers and they are robust so they can be further coated. They can be made with a large aspect ratio and with lengths of greater than 250 microns. The process permits production of microtubules in very high yields.

US Patent:

20070059273, Mar 15, 2007

Filed:

Sep 15, 2005

Appl. No.:

11/229433

Inventors:

Ronald Price - Stevensville MD, US
Eric Welsh - Annapolis MD, US
Linda Passaro - New Fairfield CT, US

International Classification:

A01N 65/00
C08G 63/91

US Classification:

424078090, 525054200

Abstract:

An antifouling coating including a polymer made by crosslinking a chitosan with a blocked polyisocyanate.

US Patent:

20080194406, Aug 14, 2008

Filed:

Oct 19, 2006

Appl. No.:

11/551115

Inventors:

Ronald R. Price - Stevensville MD, US
Aaron Wagner - Rochester NY, US

Assignee:

NaturalNano, Inc. - Pittsford NY

International Classification:

A01N 25/28
A01P 3/00
A01P 13/00
A01P 15/00
A01P 17/00

US Classification:

5041161, 424408

Abstract:

Disclosed are compositions and methods for treating agricultural materials, crops and the like using materials associated with tubules, and more particularly to the controlled or timed release of such materials or agents as a function of the association with halloysite or other mineral-derived nanotubes.

US Patent:

20090162312, Jun 25, 2009

Filed:

Mar 2, 2009

Appl. No.:

12/395816

Inventors:

Ronald R. Price - Stevensville MD, US
Eric R. Welsh - Annapolis MD, US
Linda Passaro - New Fairfield CT, US

International Classification:

A61K 31/74

US Classification:

424 7809

Abstract:

An antifouling coating including a polymer made by crosslinking a chitosan with a blocked polyisocyanate.