Gregory M Payne

US Patent:

7288532, Oct 30, 2007

Filed:

Aug 20, 1999

Appl. No.:

09/763324

Inventors:

Gregory F. Payne - Hunt Valley MD, US
Guneet Kumar - Ellicott City MD, US

Assignee:

The University of Maryland Biotechnology Institute - Rockville MD
The University of Maryland, Baltimore County - Baltimore MD

International Classification:

C08G 8/00
C12P 19/04

US Classification:

514 55, 435 681, 435 72, 435 74, 435101, 527200, 527206, 527303, 536 20, 536 551, 536 553, 536127

Abstract:

The present invention is directed to homogeneous phase enzyme-catalyzed processes for producing modified chitosan polymers or oligomers. An enzyme is reacted with a phenolic substrate in the presence of a chitosan polymer or oligomer to produce a modified chitosan polymer or oligomer. The invention also includes modified chitosan polymers or oligomers produced by the novel processes, in particular modified chitosan polymers or oligomers having useful functional properties, such as base solubility and/or high viscosity.

US Patent:

7344083, Mar 18, 2008

Filed:

Aug 31, 2005

Appl. No.:

11/216775

Inventors:

Brian Vincent Conti - Matthews NC, US
Larry Keith Hooks - Charlotte NC, US
Gregory Jon Payne - Charlotte NC, US

Assignee:

Hand Held Products, Inc. - Skaneateles Falls NY

International Classification:

G06K 7/10

US Classification:

23547201, 23546243, 235486

Abstract:

A clip is described for securing a strap to a housing having a slot for receiving the clip and a feature near the slot. The clip comprises a tab, a loop and a cover. The tab is shaped to fit in the slot on the housing. The loop defines an opening to receive a strap, at least a portion of the loop extending away from the housing to provide clearance for the strap. The cover is shaped to fit over the feature when the tab is inserted in the slot, the cover extending at an angle to the tab. In another embodiment, a clip is described as comprising a loop and tab. The loop defines an opening to receive a strap. The tab is shaped to fit in a slot on a housing, the tab having a first end attached to and spaced from a first edge of the loop, a second end of the tab extending in the same general direction as the loop, wherein the gap between a portion of the loop closest to the second end of the tab and the second end of the tab is less than the gap between the first edge of the loop and the first end of the tab such that when the tab is pressed into the slot, the second end of the tab is flexed away from the second end of the loop.

US Patent:

7571857, Aug 11, 2009

Filed:

Jan 12, 2007

Appl. No.:

11/622615

Inventors:

Gregory Jon Payne - Charlotte NC, US
Sven M. A. Powilleit - Charlotte NC, US
Jim T. Sauerwein - Charlotte NC, US

Assignee:

Hand Held Products, Inc. - Skaneateles Falls NY

International Classification:

G06K 15/00
G06K 7/10

US Classification:

23546213, 23547201, 23547202

Abstract:

A data collection system including a portable data terminal and a base for receiving the portable data terminal. The portable data terminal having a first interface for receiving power and a second interface for connecting to a communication link. The base having a housing adapted to receive and support the portable data terminal, a power supply receiving power from an external power source and upon insertion of the portable data terminal into the housing supplying power to the first interface on the portable data terminal, a communication link adapted to interface with the portable data terminal, and a location determination device, such as a GPS receiver, connected to the communication link and supplying the portable data terminal with location data via the communication link.

US Patent:

7790010, Sep 7, 2010

Filed:

Jun 17, 2005

Appl. No.:

11/155116

Inventors:

William E. Bentley - Annapolis MD, US
Reza Ghodssi - Rockville MD, US
Gregory F. Payne - Cockeysville MD, US
Gary W. Rubloff - Clarksville MD, US
Li-Qun Wu - North Potomac MD, US
Hyunmin Yi - Ellicott City MD, US
Wolfgang Losert - Bethesda MD, US
Douglas S. English - Silver Spring MD, US

Assignee:

University of Maryland, College Park - College Park MD
University of Maryland, Baltimore County - Baltimore MD

International Classification:

C25D 5/02
C25D 5/48
C25D 9/02

US Classification:

205118, 205136, 205229, 205317

Abstract:

A method is provided for electrochemically depositing a polymer with spatial selectivity. A substrate having a substrate surface is contacted with an aqueous solution containing a selectively insolubilizable polysaccharide, such as chitosan, which is subjected to electrochemically treatment to deposit, with spatial selectivity, the selectively insolubilizable polysaccharide on a patterned electrically conductive portion of the substrate surface.

US Patent:

7820227, Oct 26, 2010

Filed:

Feb 20, 2004

Appl. No.:

10/581905

Inventors:

Gregory F. Payne - Cockeysville MD, US
Gary W. Rubloff - Clarksville MD, US
Hyunmin Yi - Lexington MA, US
Rohan Fernandes - Beltsville MD, US
Li-Qun Wu - North Potomac MD, US
Reza Ghodssi - Silver Spring MD, US
William E. Bentley - Annapolis MD, US

Assignee:

University of Maryland, College Park - College Park MD
University of Maryland, Baltimore County - Baltimore MD

International Classification:

A61L 33/00

US Classification:

427 21, 427 211, 427 212, 427299, 427300, 427307, 427322, 427331, 4273722, 4273743, 427384, 4273882, 4273884

Abstract:

A method for biolithographical deposition of molecules is provided. According to an embodiment of the method, a reactive layer (e. g. , a polysaccharide mass) having a surface region coated with a biologically compatible resist is provided. A portion of the biologically compatible resist is selectively removed to expose an exposed portion of the reactive layer. Molecules, such as biomolecules and/or cellular species, are then conjugated to the exposed portion of the reactive layer. Also provided are materials and devices related to the method.

US Patent:

7882597, Feb 8, 2011

Filed:

Mar 4, 2008

Appl. No.:

12/042064

Inventors:

Brian Vincent Conti - Matthews NC, US
Gregory Jon Payne - Charlotte NC, US

Assignee:

Hand Held Products, Inc. - Skaneateles Falls NY

International Classification:

A47B 96/06
A45F 5/00

US Classification:

24 313, 24822021, 23447201, 224255, 224269

Abstract:

A clip is described for securing a strap to a housing having a slot for receiving the clip and a feature near the slot. The clip comprises a tab, a loop and a cover. The tab is shaped to fit in the slot on the housing. The loop defines an opening to receive a strap, at least a portion of the loop extending away from the housing to provide clearance for the strap. The cover is shaped to fit over the feature when the tab is inserted in the slot, the cover extending at an angle to the tab. In another embodiment, a clip is described as comprising a loop and tab. The loop defines an opening to receive a strap. The tab is shaped to fit in a slot on a housing, the tab having a first end attached to and spaced from a first edge of the loop, a second end of the tab extending in the same general direction as the loop, wherein the gap between a portion of the loop closest to the second end of the tab and the second end of the tab is less than the gap between the first edge of the loop and the first end of the tab such that when the tab is pressed into the slot, the second end of the tab is flexed away from the second end of the loop.

US Patent:

7883615, Feb 8, 2011

Filed:

Feb 11, 2004

Appl. No.:

10/541057

Inventors:

Gregory F. Payne - Cockeysville MD, US
Li-Qun Wu - North Potomac MD, US
Reza Ghodssi - Rockville MD, US
William E. Bentley - Annapolis MD, US
Gary W. Rubloff - Clarksville MD, US
Hyunmin Yi - Ellicott City MD, US
Rohan Fernandes - Beltsville MD, US
Tianhong Chen - Newark DE, US
David A. Small - Silver Spring MD, US

Assignee:

University of Maryland, College Park - College Park MD
University of Maryland, Baltimore County - Baltimore MD

International Classification:

C25D 9/02

US Classification:

205 82, 205317, 205229, 205118

Abstract:

A method is provided for electrochemically depositing a polysaccharide mass having a selected physical state. According to an embodiment, an electrically conductive support of a substrate is contacted with an aqueous solution including a selectively insolubilizable polysaccharide, and the selectively insolubilizable polysaccharide is electrochemically deposited on the electrically conductive support while controlling deposition conditions to form the polysaccharide mass having the selected physical state, such as that of a hydrogel. Deposition may be performed in a spatially and/or temporally controlled manner.

US Patent:

8098237, Jan 17, 2012

Filed:

Dec 21, 2007

Appl. No.:

11/962598

Inventors:

Gregory Jon Payne - Charlotte NC, US

Assignee:

Hand Held Products, Inc. - Skaneateles Falls NY

International Classification:

G06F 3/033

US Classification:

345173, 23546201, 345156, 345179

Abstract:

A data collection device having a touch pad, supported by a housing, for receiving input from a stylus having a first end adapted to interact with the touch pad so as to input data through movement of the first end relative to the touch pad and a second end having a light source to illuminate dark areas. The housing is adapted to receive and support the stylus. In an additional embodiment, the stylus is supported by the housing in such a manner as to allow the stylus to project light in a predetermined direction to assist with the illumination of a data source. In another additional embodiment, the housing has contacts that facilitate the provision of power to the stylus for charging a battery in the stylus and/or powering the light source. In yet another embodiment, the light source on the stylus is adapted to be controlled via user interaction with interface elements on the housing, such as keys, buttons, or the touch pad.