David M Snyder

US Patent:

6471962, Oct 29, 2002

Filed:

Oct 2, 1992

Appl. No.:

07/956473

Inventors:

David Snyder - Bowie MD

Assignee:

The University of Maryland - College Park MD

International Classification:

A61K 3942

US Classification:

4241471, 435 7021, 435339, 5303883

Abstract:

Two monoclonal antibodies which neutralize all infectious bursal disease viruses are employed in the preparation of infectious bursal disease vaccines. A panel of monoclonal antibodies can be used to characterize the infectious bursal disease virus strains present, according to neutralization site characteristics.

US Patent:

6509697, Jan 21, 2003

Filed:

Jan 30, 2001

Appl. No.:

09/771671

Inventors:

Robert Ervin - Gaithersburg MD
Gregory Walter - Frederick MD
David Snyder - Frederick MD

Assignee:

Fusion UV Systems, Inc. - Gaithersburg MD

International Classification:

H05B 4124

US Classification:

315248, 315 3951, 315112, 315344, 347100, 313 35

Abstract:

A compact, electrodeless, microwave-powered lamp (e. g. , ultraviolet light emitting lamp) is provided, as well as methods of using this lamp. The lamp includes a microwave generator, waveguide and RF cavity. The RF slot between the waveguide and RF cavity, for introducing microwaves from the waveguide into the RF cavity, extends through an end member forming the RF cavity rather than through the elliptical-shaped reflector; and the RF slot is aligned with the bulb. Cooling air for cooling the bulb passes through the RF slot, and preferably this cooling air passes by both the bulb and microwave generator for cooling both. The bulb is rotated during use. The compact size of the lamp facilitates its use in small devices, such as inkjet printers for office use to cure ultraviolet light curable inkjet inks, among other uses.

US Patent:

7057183, Jun 6, 2006

Filed:

Apr 30, 2004

Appl. No.:

10/834877

Inventors:

Joe T. May - Leesburg VA, US
David C. Snyder - Frederick MD, US
James M. Raymont - Sterling VA, US
Matthew J. McConnell - Ashburn VA, US
Edward A. Casacia - Sterling VA, US
Kyle L. Bostian - Frederick MD, US

Assignee:

Electronic Instrumentation and Technology, Inc. - Sterling VA

International Classification:

G01J 1/42

US Classification:

250372

Abstract:

A radiometer that incorporates multiple UV bandwidth sensors, defined in nanometers, and includes connectors for inserting a cable that is used to connect to another sensor, or to a data collection module (DCM) in a multidrop, or daisy-chain arrangement. Each sensor can be positioned at any point on a three-dimensional work piece, and will receive UV energy at the aperture having an optical component. The collected energy is directed to a detector in the sensor. A processor in the body of the sensor then computes the amount of UV radiation based on signals from the detector. This information is transferred to and stored in a data collection module to which the sensor string is connected. Data stored in the DCM can then be transferred to a computer for display purposes. The sensors and DCM can be tethered to the computer for real-time measurement readings when adjusting the UV lamps.

US Patent:

7183558, Feb 27, 2007

Filed:

Feb 16, 2006

Appl. No.:

11/354973

Inventors:

Joe T. May - Leesburg VA, US
David C. Snyder - Frederick MD, US
James M. Raymont - Sterling VA, US
Matthew J. McConnell - Ashburn VA, US
Edward A. Casacia - Sterling VA, US
Kyle L. Bostian - Frederick MD, US

Assignee:

Electronic Instrumentation and Technology, Inc. - Sterling VA

International Classification:

G01J 1/42

US Classification:

250372

Abstract:

A radiometer that incorporates multiple UV bandwidth sensors, defined in nanometers, and includes connectors for inserting a cable that is used to connect to another sensor, or to a data collection module (DCM) in a multidrop, or daisy-chain arrangement. Each sensor can be positioned at any point on a three-dimensional work piece, and will receive UV energy at the aperture having an optical component. The collected energy is directed to a detector in the sensor. A processor in the body of the sensor then computes the amount of UV radiation based on signals from the detector. This information is transferred to and stored in a data collection module to which the sensor string is connected. Data stored in the DCM can then be transferred to a computer for display purposes. The sensors and DCM can be tethered to the computer for real-time measurement readings when adjusting the UV lamps.

US Patent:

7601964, Oct 13, 2009

Filed:

Apr 10, 2007

Appl. No.:

11/733516

Inventors:

Joe T. May - Leesburg VA, US
Matthew J. McConnell - Ashburn VA, US
David C. Snyder - Frederick MD, US

Assignee:

Electronic Instrumentation & Technology, Inc. - Sterling VA

International Classification:

G01J 1/42

US Classification:

250372, 250365, 25037001

Abstract:

A detector receives energy pulses and a lossy integration circuit generates a lossy integration that, for each pulse, increases over the pulse duration to a maximum value and then decays. The lossy integration is sampled, with a sampling rate and decay rate such that the sample is within a given acceptable error of the maximum value. The sample represents the pulse total energy, within the given acceptable error. An optional circuit and processing function calculates a total accumulated energy over a plurality of pulses.

US Patent:

7912868, Mar 22, 2011

Filed:

May 11, 2005

Appl. No.:

11/126184

Inventors:

Randall Jay Calistri-Yeh - Florham Park NJ, US
Wen Ruan - Manlius NY, US
Clinton P. Mah - Fairfax VA, US
Mary Louise Howatt - Toronto, CA
Mary E. McKenna - Natick MA, US
Maurice J. Forrester - Syracuse NY, US
Bo Yuan - Webster NY, US
David L. Snyder - Pittsford NY, US

Assignee:

Textwise LLC - Syracuse NY

International Classification:

G06F 17/30
G06F 17/27

US Classification:

707803, 704 9

Abstract:

An advertisement placement method and system for relating an advertisement to a dataset based on a trainable semantic vector (TSV) associated with the dataset and respective semantic representations of the advertisements. The trainable semantic vector associated with the dataset is generated based on at least one data point included in the dataset and known relationships between predetermined data points and predetermined categories. A comparison process is performed to determine a similarity between the trainable semantic vector associated with the dataset and the semantic representation associated with each of the plurality of advertisements. The system selectively relates one or more of the advertisements with the dataset based on a result of the comparison process. The selected advertisement or advertisements may be displayed with the dataset.

US Patent:

61563145, Dec 5, 2000

Filed:

Jun 15, 1999

Appl. No.:

9/332978

Inventors:

Vikram Vakharia - Bowie MD
David B. Snyder - Bowie MD

Assignee:

The University of Maryland College Park - College Park MD

International Classification:

A61K 3942
C07H 2104
C07K 1608

US Classification:

4241471

Abstract:

Chimeric cDNA for the expression of immunogenic polypeptides include the genetic epitopic determinants for a base infectious bursal disease virus strain and at least one other infectious bursal disease virus strain. The genetic epitopic determinants encode amino acids or amino acid sequences which define epitopes bound to by previously established monoclonal antibodies. The immunogens expressed by the cDNA may be employed to provide a vaccine against a plurality of IBDV strains. The epitopic determinant of IBDV lethal strains has been detected, and an immunogen for conferring immunity with respect thereto is disclosed. Similarly, a monoclonal antibody specific for IBDV lethal strains is identified, and a vaccine for passive immunization therewith is also disclosed. Immunogens exhibiting conformational epitopes, in the form of virus-like particles, are effective in the preparation of vaccines.

US Patent:

49083058, Mar 13, 1990

Filed:

Oct 21, 1987

Appl. No.:

7/110738

Inventors:

David B. Snyder - Seabrook MD

Assignee:

The University of Maryland - College Park MD

International Classification:

G01N 3353
G01N 33577
C07K 1514
C12N 100

US Classification:

435 5

Abstract:

A method for determining the level of infectious bursal disease virus IBDV neutralizing antibody in poultry comprising a labeled monoclonal antibody R63 having the IBDV neutralizing capability of the monoclonal antibody expressed by hybridoma cell line ATCC HB-9490. Monoclonal antibody R63 is specific to all known IBDV strains and serotypes and competes only with itself and other antibodies recognizing the same neutralizing epitope present in poultry sera. In a competition assay, the increase in unbound labeled monoclonal antibody is an indication of the level of IBDV neutralizing antibody present in poultry sera.