Dan Lee Todd

US Patent:

8461364, Jun 11, 2013

Filed:

Dec 17, 2009

Appl. No.:

12/641318

Inventors:

Conrad Wheeler - San Francisco CA, US
Dan Todd - Collegeville PA, US
Pingyun Chen - Collegeville PA, US
Beth A. Norton - Collegeville PA, US

Assignee:

GlaxoSmithKline LLC - Philadelphia PA
Anacor Pharmaceuticals, Inc. - Palo Alto CA

International Classification:

C07F 5/02
A61K 31/69

US Classification:

556 7, 514 64

Abstract:

This invention provides, among other things, polymorphs of the hydrochloride salt of (S)-3-aminomethyl-7-(3-hydroxy-propoxy)-3H-benzo[c][1,2]oxaborol-1-ol.

US Patent:

58444408, Dec 1, 1998

Filed:

Dec 20, 1996

Appl. No.:

8/771439

Inventors:

Ronald J. Lenk - Sunnyvale CA
Dan Lee Todd - Union City CA

Assignee:

Ericsson, Inc. - Menlo Park CA

International Classification:

H03K 508

US Classification:

327322

Abstract:

A circuit for limiting the current flow in a "pluggable" circuit during start-up or circuit fault conditions employs a MOSFET in conjunction with a feedback system, wherein a source terminal of the MOSFET is connected to a power supply bus and a drain terminal of the MOSFET is connected to the circuit to be current limited, respectively. A gate terminal of the MOSFET is controlled by a pair of op amps, wherein the first op amp amplifies the voltage across a current sensing resistor between the MOSFET and the circuit and outputs this pre-amplified voltage into the second op amp, and the second op amp amplifies the difference between this pre-amplified voltage and a first reference voltage. The output of the second op amp is connected to the gate terminal of the MOSFET, thereby varying the voltage at the gate terminal, as the output of the second op amp varies. A comparator may be provided to turn the MOSFET completely OFF during a circuit fault, wherein an output of the comparator is connected to the input of the second op amp.