Andrew H Chang

6396032, May 28, 2002

Feb 23, 2001

09/791271

Michael S. Denny - Springfield PA
Andrew Chang - Upper Darby PA
Mark L. Novack - Cheltenham PA

Athena Controls, Inc. - Plymouth Meeting PA

H05B 102

219501, 219492, 219506, 219414

An oven temperature control circuit utilizes one or more light emitting diodes to establish a clamping voltage that limits the voltage at the input of a circuit component, such as an analog-to-digital converter, when a sensor, such as a thermistor, is connected to the input of the circuit component and the sensor is subjected to an EMI pulse. A method is provided for continued execution of a heating process after an unavoidable and unintentional interruption.

7304263, Dec 4, 2007

Aug 5, 2004

10/911821

Andrew Chang - Oakland CA, US
Jeffrey W. Carr - Livermore CA, US
Jude Kelley - Belmont CA, US
Peter S. Fiske - Oakland CA, US

RAPT Industries, Inc. - Fremont CA

B23K 9/00

21912141, 21912148, 21912159, 15634539, 264 136, 216 38

The footprint of a reactive atom plasma processing tool can be modified using an aperture device. A flow of reactive gas can be injected into the center of an annular plasma. An aperture can be positioned relative to the plasma such that the effective footprint of the plasma can be changed without adjusting the gas flows or swapping out the tool. Once the aperture and tool are in position relative to a workpiece, reactive atom plasma processing can be used to modify the surface of the workpiece, such as to etch, smooth, polish, clean, and/or deposit material onto the workpiece. If necessary, a coolant can be circulated about the aperture. Multiple apertures can also be used to provide a variety of footprint sizes and/or shapes. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.

20040073581, Apr 15, 2004

Jun 27, 2003

10/607871

Lawrence McVoy - San Francisco CA, US
Andrew Chang - Los Altos CA, US
Wayne Scott - Churubusco IN, US

G06F012/00

707/203000

A version controlled associative array is provided. A method of the invention includes providing a version control system on a computer, creating within the version control system an associative array comprising a collection of keys and corresponding values, applying a version control operation to the associative array to version control the collection of keys and corresponding values, and applying a version control operation to a collection of associative arrays, each viewed as a database record, and organized as a group of database tables forming a database. An apparatus, a computer system, and a computer readable medium pertaining to the version controlled associative array invention are also provided.

20050061774, Mar 24, 2005

Aug 6, 2004

10/913808

Jude Kelley - Belmont CA, US
Jeffrey Carr - Livermore CA, US
Peter Fiske - Oakland CA, US
Andrew Chang - Oakland CA, US

RAPT Industries, Inc. - Livermore CA

C03C015/02
C23F001/12

216067000, 216059000, 216074000, 065029120, 065102000, 065111000

High-quality glass parts, such as high-end optics, can be generated using a completely damage free process. An intial damage-free forming step, such as sluping, can be used to roughly shape a glass workpiece without imparting any subsurface damage. A reactive atom processing (RAP) process can then be used to rapidly remove any anomalies or imperfections from the surface of the optic without imparting any damage unto the optic. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.

20080035612, Feb 14, 2008

Oct 19, 2007

11/875787

Andrew Chang - Oakland CA, US
Jeffrey Carr - Livermore CA, US
Jude Kelley - Belmont CA, US
Peter Fiske - Oakland CA, US

RAPT INDUSTRIES, INC. - Fremont CA

B23K 10/00

219121440

A method for reducing heat applied to a workpiece by a plasma discharge of a reactive plasma torch comprises determining a footprint of the plasma discharge on a surface of the workpiece based on a distance of the reactive atom plasma torch from the surface, determining a maximum heat absorbable by the workpiece, and determining an adjusted footprint of the reactive atom plasma torch on the surface based on the maximum heat absorbable by the workpiece. An aperture of an aperture device is selected based on the adjusted footprint of the reactive atom plasma torch. The aperture device is then positioned so that a portion of the plasma is one or both of deflected and absorbed by the aperture device, thereby reducing the heat absorbed by the workpiece.

20120185544, Jul 19, 2012

Jan 13, 2012

13/349807

Andrew Chang - Palo Alto CA, US
Pallipuram V. Kannan - Los Gatos CA, US
Ravi Vijayaraghavan - Bangalore, IN

G06F 15/16

709206

Embodiments of the invention provide techniques that quantize community interactions with social media to understand and influence consumer experiences.

20120233258, Sep 13, 2012

May 1, 2012

13/461631

Ravi VIJAYARAGHAVAN - Bangalore, IN
Ravi GARIKIPATI - Bangalore, IN
Andrew CHANG - Palo Alto CA, US
Pallipuram V. KANNAN - Los Gatos CA, US

G06F 15/16

709204

Embodiments of the invention provide techniques that quantize community interactions with social media to understand and influence consumer experiences.

20130080362, Mar 28, 2013

Aug 30, 2012

13/599974

Andrew CHANG - Palo Alto CA, US
Pallipuram V. KANNAN - Los Gatos CA, US

G06F 15/18

706 21

Customer journey prediction and resolution is accomplished via a predictive model in which each user is mapped onto all available user journey information corresponding to a specific business. The predictive model is analyzed to understand the characteristics, preferences, and lowest effort resolution for the user related to the services that are subscribed to by the user. The predictive model is analyzed to predict the service or collection of services for each user. Embodiments interact with, provide and receive information from, and react to and/or deliver action to the customer across channels and across services. All customer and system behavior, data, and action is tracked and coordinated and leveraged for continuous feedback and performance improvement.