Christopher A Baldwin

US Patent:

6562796, May 13, 2003

Filed:

Dec 20, 2001

Appl. No.:

10/026853

Inventors:

Christopher J. Baldwin - Santa Cruz CA
Conway C. Chang - San Francisco CA
Binh T. Dang - San Jose CA

Assignee:

Micrologix Biotech Inc. - Vancouver

International Classification:

A61K 3170

US Classification:

514 31, 536 65, 536 185

Abstract:

The present invention provides a new class of polyene macrolide derivatives useful for treating or preventing fungal infections. The new polyene macrolide derivatives exhibit surprisingly superior antifungal activity and water solubility compared to amphotericin B methyl ester (AME). In addition, the new polyene macrolide derivatives have improved water solubility and lower toxicity than both amphotericin B (AmB) and AME.

US Patent:

20040029817, Feb 12, 2004

Filed:

Apr 25, 2003

Appl. No.:

10/424162

Inventors:

Christopher Baldwin - Santa Cruz CA, US
Conway Chang - Cambridge MA, US
Binh Dang - San Jose CA, US

Assignee:

Micrologix Biotech Inc. - Vancouver

International Classification:

A61K031/7048
C07H017/08

US Classification:

514/028000, 536/007100

Abstract:

The present invention provides a new class of polyene macrolide derivatives useful for treating or preventing fungal infections. The new polyene macrolide derivatives exhibit surprisingly superior antifungal activity and water solubility compared to amphotericin B methyl ester (AME). In addition, the new polyene macrolide derivatives have improved water solubility and lower toxicity than both amphotericin B (AmB) and AME.

US Patent:

20110229071, Sep 22, 2011

Filed:

Apr 22, 2010

Appl. No.:

13/129481

Inventors:

Andre R. Vincelette - Deux-Montagnes, CA
Jason S. Kiddy - Gambrills MD, US
John B. Niemczuk - Kensington MD, US
Christopher S. Baldwin - Laurel MD, US
Paul Lefebvre - Laval, CA

Assignee:

LXDATA INC. - St-Laurent QC

International Classification:

E21B 47/06

US Classification:

385 13

Abstract:

A sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation, such as a subterranean formation containing a hydrocarbon based fluid. The sensor arrangement may be used to measure one or more physical parameters, such as temperature and/or pressure, at a multiplicity of locations in the subterranean reservoir. The sensor arrangement may comprise a sensor array comprising an elongated outer casing for insertion in the subterranean formation and into a fluid in the subterranean formation. The sensor array may comprise an optical fiber defining an optical path that links one or more temperature sensors and one or more pressure sensors and transports measurement data generated by the temperature and pressure sensors. A data processing system may be connected to the sensor array to receive measurements from the sensor array and to compute one or more values of a property of an extraction installation operating on the subterranean formation.

US Patent:

20210008657, Jan 14, 2021

Filed:

Sep 22, 2020

Appl. No.:

17/028548

Inventors:

- Houston TX, US
Christopher S. BALDWIN - Laurel MD, US
Paul LEFEBVRE - Laval, CA
Hongbo LI - North Potomac MD, US
Domino TAVERNER - Bethany CT, US
James R. DUNPHY - Jamestown RI, US

International Classification:

B23K 20/10
G01H 9/00
G02B 6/44
E21B 47/135

Abstract:

Methods and apparatus to control the acoustic properties of optical cables used as in-well oil and gas probes for acoustic monitoring, such as distributed acoustic sensing (DAS). One example aspect provides a solid path for the acoustic wave to propagate from an outside armor layer of the cable to the sensing optical waveguide embedded therein. Another example aspect offers ways to spatially dispose the optical sensing elements to create response delays indicative of the propagation speed and/or direction of an acoustic wave. Yet another example aspect provides ways to utilize additional spectral interrogation to increase ultimate spatial resolution. Yet another example aspect provides ways to locally vary the acoustic properties along the length of the cable.

US Patent:

20190226321, Jul 25, 2019

Filed:

Apr 1, 2019

Appl. No.:

16/371350

Inventors:

- Edmonton, CA
Jason Scott KIDDY - Gambrills MD, US
John NIEMCZUK - Kensington MD, US
Christopher S. BALDWIN - Laurel MD, US
Paul LEFEBVRE - Laval, CA

International Classification:

E21B 47/06
G02B 6/50
G01L 1/24
E21B 47/12
E21B 43/24

Abstract:

A sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation, such as a subterranean formation containing a hydrocarbon based fluid. The sensor arrangement may be used to measure one or more physical parameters, such as temperature and/or pressure, at a multiplicity of locations in the subterranean reservoir. The sensor arrangement may comprise a sensor array comprising an elongated outer casing for insertion in the subterranean formation and into a fluid in the subterranean formation. The sensor array may comprise an optical fiber defining an optical path that links one or more temperature sensors and one or more pressure sensors and transports measurement data generated by the temperature and pressure sensors. A data processing system may be connected to the sensor array to receive measurements from the sensor array and to compute one or more values of a property of an extraction installation operating on the subterranean formation.

US Patent:

20180087371, Mar 29, 2018

Filed:

Aug 11, 2017

Appl. No.:

15/675505

Inventors:

- Calgary, CA
Jason S. KIDDY - Gambrills MD, US
John B. NIEMCZUK - Kensington MD, US
Christopher S. BALDWIN - Laurel MD, US
Paul LEFEBVRE - Laval, CA

International Classification:

E21B 47/06
G02B 6/50
G01L 1/24
E21B 43/24
E21B 47/12

Abstract:

A sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation, such as a subterranean formation containing a hydrocarbon based fluid. The sensor arrangement may be used to measure one or more physical parameters, such as temperature and/or pressure, at a multiplicity of locations in the subterranean reservoir. The sensor arrangement may comprise a sensor array comprising an elongated outer casing for insertion in the subterranean formation and into a fluid in the subterranean formation. The sensor array may comprise an optical fiber defining an optical path that links one or more temperature sensors and one or more pressure sensors and transports measurement data generated by the temperature and pressure sensors. A data processing system may be connected to the sensor array to receive measurements from the sensor array and to compute one or more values of a property of an extraction installation operating on the subterranean formation.

US Patent:

20160245071, Aug 25, 2016

Filed:

May 5, 2016

Appl. No.:

15/147704

Inventors:

- Calgary, CA
Jason S. KIDDY - Gambrills MD, US
John B. NIEMCZUK - Kensington MD, US
Christopher S. BALDWIN - Laurel MD, US
Paul LEFEBVRE - Laval, CA

International Classification:

E21B 47/06
G01L 1/24
G02B 6/50

Abstract:

A sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation, such as a subterranean formation containing a hydrocarbon based fluid. The sensor arrangement may be used to measure one or more physical parameters, such as temperature and/or pressure, at a multiplicity of locations in the subterranean reservoir. The sensor arrangement may comprise a sensor array comprising an elongated outer casing for insertion in the subterranean formation and into a fluid in the subterranean formation. The sensor array may comprise an optical fiber defining an optical path that links one or more temperature sensors and one or more pressure sensors and transports measurement data generated by the temperature and pressure sensors. A data processing system may be connected to the sensor array to receive measurements from the sensor array and to compute one or more values of a property of an extraction installation operating on the subterranean formation.

US Patent:

20160209584, Jul 21, 2016

Filed:

Jan 13, 2016

Appl. No.:

14/994628

Inventors:

- Houston TX, US
Christopher S. BALDWIN - Laurel MD, US
Paul LEFEBVRE - Laval, CA
Hongbo LI - North Potomac MD, US
Domino TAVERNER - Delray Beach FL, US
James R. DUNPHY - Jamestown RI, US

International Classification:

G02B 6/02
B23K 20/10
G02B 6/036

Abstract:

Methods and apparatus to control the acoustic properties of optical cables used as in-well oil and gas probes for acoustic monitoring, such as distributed acoustic sensing (DAS). One example aspect provides a solid path for the acoustic wave to propagate from an outside armor layer of the cable to the sensing optical waveguide embedded therein. Another example aspect offers ways to spatially dispose the optical sensing elements to create response delays indicative of the propagation speed and/or direction of an acoustic wave. Yet another example aspect provides ways to utilize additional spectral interrogation to increase ultimate spatial resolution. Yet another example aspect provides ways to locally vary the acoustic properties along the length of the cable.