David R Townsend

US Patent:

6509168, Jan 21, 2003

Filed:

Apr 18, 2001

Appl. No.:

09/838590

Inventors:

Andrew J. Croteau - Peabody MA
Mark W. Pierson - Saco ME
David E. Townsend - Scarborough ME
Ali Naqui - Falmouth ME

Assignee:

Biocontrol Systems, Inc. - Bellevue WA

International Classification:

C12Q 124

US Classification:

435 30, 435 4, 435 29

Abstract:

Method for detection of a biological material in a sample. The method includes the steps of liquifying the sample (if necessary) and pouring the liquified sample into the incubation plate. The incubation plate has a generally flat horizontal surface and the surface is divided into a plurality of at least 20 recessed wells. Each well is adapted to hold an aliquot of liquid and is sized and shaped, and formed of a suitable material, to hold the aliquot within the well by surface tension. Any excess liquid from the liquified sample is poured from the surface of the plate. The method then involves incubating that incubation plate until the presence or absence of the biological material is determined.

US Patent:

7122338, Oct 17, 2006

Filed:

Jan 21, 2003

Appl. No.:

10/349196

Inventors:

Andrew J. Crouteau - Peabody MA, US
Mark W. Pierson - Saco ME, US
David E. Townsend - Scarborough ME, US
Ali Naqui - Falmouth ME, US

Assignee:

Biocontrol Systems, Inc. - Bellevue WA

International Classification:

C12Q 1/24

US Classification:

435 30, 4352879

Abstract:

Methods for the detection and/or quantification of a biological material in a sample. The method includes the steps of liquefying the sample (if necessary) and pouring the liquefied sample into the incubation vessel. The incubation vessel has a generally flat horizontal surface and the surface is divided into at least one incubation site. Each incubation site is adapted to hold an aliquot of liquid and is sized and shaped, and formed of a suitable material, to hold the aliquot within the well by surface tension. Any excess liquid from the liquefied sample is poured from the surface of the incubation vessel. The method then involves incubating that incubation vessel until the presence or absence of the biological material is determined. The presence of air bubbles can be dramatically reduced by the presence of a surface acting agent in the liquid sample deposited on the device surface. Such an agent can be added to the sterile diluent used to prepare the test reagent, can be separately added to the test reagent after it is prepared, or can be added to the test sample directly while it is being prepared for testing.

US Patent:

8048507, Nov 1, 2011

Filed:

Jan 28, 2011

Appl. No.:

13/016513

Inventors:

David Blaire Townsend - Manchester NH, US
William H. Shepard - Amherst NH, US
Scott Billings - Shirley MA, US

Assignee:

Velcro Industries B.V. - Curacao

International Classification:

A44B 18/00
B32B 25/00

US Classification:

428100, 24442, 24452, 428 95, 428 99

Abstract:

A carpeted surface is protected with a temporary carpet protection sheet that includes a lightweight non-woven or knit fibrous material laminated with a resin backing into which at least portions of fibers of the fibrous material are embedded, or to which resin of the fibers is directly and chemically fused. Male touch fastener elements extend along the backing and are arranged in spaced apart fastening regions adjacent the longitudinal edges of the fibrous material. The male touch fastener elements are configured to be both releasably engageable with the hook-engageable fibers of the fibrous material, when the protection sheet is arranged in overlapping fashion, and releasably engageable with looped carpet tufts. A protection system features multiple lengths of such protection sheet joined by hook seaming tape.

US Patent:

20070065894, Mar 22, 2007

Filed:

Sep 21, 2006

Appl. No.:

11/526147

Inventors:

Andrew Croteau - Peabody MA, US
Mark Pierson - Saco ME, US
David Townsend - Scarborough ME, US
Ali Naqui - Falmouth ME, US

Assignee:

Biocontrol Systems, Inc. - Bellevue WA

International Classification:

C12Q 1/34
C12M 3/00

US Classification:

435018000, 435287100

Abstract:

Methods for the detection and/or quantification of a biological material in a sample. The method includes the steps of liquefying the sample (if necessary) and pouring the liquefied sample into the incubation vessel. The incubation vessel has a generally flat horizontal surface and the surface is divided into at least one incubation site. Each incubation site is adapted to hold an aliquot of liquid and is sized and shaped, and formed of a suitable material, to hold the aliquot within the well by surface tension. Any excess liquid from the liquefied sample is poured from the surface of the incubation vessel. The method then involves incubating that incubation vessel until the presence or absence of the biological material is determined. The presence of air bubbles can be dramatically reduced by the presence of a surface acting agent in the liquid sample deposited on the device surface. Such an agent can be added to the sterile diluent used to prepare the test reagent, can be separately added to the test reagent after it is prepared, or can be added to the test sample directly while it is being prepared for testing.

US Patent:

59855940, Nov 16, 1999

Filed:

Nov 6, 1996

Appl. No.:

8/746054

Inventors:

Andrew J. Croteau - Peabody MA
Mark W. Pierson - Saco ME
David E. Townsend - Scarborough ME
Ali Naqui - Falmouth ME

Assignee:

Idexx Laboratories, Inc. - Westbrook ME

International Classification:

C12Q 124

US Classification:

435 30

Abstract:

Method for detection of a biological material in a sample. The method includes the steps of liquifying the sample (if necessary) and pouring the liquified sample into the incubation plate. The incubation plate has a generally flat horizontal surface and the surface is divided into a plurality of at least 20 recessed wells. Each well is adapted to hold an aliquot of liquid and is sized and shaped, and formed of a suitable material, to hold the aliquot within the well by surface tension. Any excess liquid from the liquified sample is poured from the surface of the plate. The method then involves incubating that incubation plate until the presence or absence of the biological material is determined.

US Patent:

62877976, Sep 11, 2001

Filed:

Mar 26, 1999

Appl. No.:

9/277522

Inventors:

Andrew J. Croteau - Peabody MA
Mark W. Pierson - Saco ME
David E. Townsend - Scarborough ME
Ali Naqui - Falmouth ME

Assignee:

BioControl Systems, Inc. - Bellevue WA

International Classification:

C12Q 124

US Classification:

435 30

Abstract:

Method for detection of a biological material in a sample. The method includes the steps of liquifying the sample (if necessary) and pouring the liquified sample into the incubation plate. The incubation plate has a generally flat horizontal surface and the surface is divided into a plurality of at least 20 recessed wells. Each well is adapted to hold an aliquot of liquid and is sized and shaped, and formed of a suitable material, to hold the aliquot within the well by surface tension. Any excess liquid from the liquified sample is poured from the surface of the plate. The method then involves incubating that incubation plate until the presence or absence of the biological material is determined.