John S Walton

7002351, Feb 21, 2006

Feb 27, 2004

10/787261

Kenneth A. McQueeney - Los Gatos CA, US
John P. Walton - Santa Cruz CA, US
Lee M. Snorteland - San Jose CA, US

Snap-On Incorporated - Pleasant Prairie WI

F02P 17/00

324402, 324380

A variable compensation circuit for capacitive adapters is provided and includes an input connector for receiving a signal output from a capacitive adapter positioned within an electric near field emitted from a component of an engine ignition system, an output connector for outputting a signal output from the variable compensation circuit, a capacitive divider circuit portion disposed in series between the input and output connectors, the capacitive divider circuit portion comprising at least one of a variable capacitor and a plurality of fixed capacitors. The variable compensation circuit also includes a switching element configured to enable at least one of a selection and de-selection of the plurality of fixed capacitors and adjustment of a variable capacitor to provide one of a plurality of selected capacitance reactance ratios.

41182863, Oct 3, 1978

Sep 25, 1974

5/508984

Simon Pierce Burns - Austin TX
John Monte Walton - Austin TX

Texaco Development Corp. - New York NY

B01D 300

203 89

In a process for purifying and reducing the acidity of a polymethylene polyphenylpolyisocyanate mixture wherein the mixture is subjected to a distillation step, such as by passing a flowing stream of a crude polymethylene polyphenylpolyisocyanate mixture through a distillation column which has a reboiler means consisting of a thin film evaporator apparatus mounted therewith for rapidly heating the stream to about 190. degree. C. to about 250. degree. C. whereby the solvent and impurities are taken overhead, and then allowing the distillation residue of polymethylene polyphenylpolyisocyanate to cool, an improvement is disclosed which comprises maintaining the distillation residue of the polymethylene polyphenylpolyisocyanate at a temperature of about 190. degree. C. to about 250. degree. C. for a time period of from about 1 to about 60 minutes and then recirculating continuously a portion of the distillation residue to the distillation column for admixture with the flowing feed stream of crude polymethylene polyphenylpolyisocyanate at a recirculation rate of from about 1:1 to about 3:1 volumes of isocyanate distillation residue per volume of crude isocyanate feed.

45529582, Nov 12, 1985

Feb 17, 1984

6/581464

Simon P. Burns - Austin TX
John M. Walton - Georgetown TX
Edward E. McEntire - Austin TX

Texaco Inc. - White Plains NY

C07D26530
C07D26532
C07D29512
C07C 8700

544177

A method for the separation of primary amines such as bis-(2-aminoethyl)ether from tertiary amines such as N-(2-methoxyethyl)morpholine which have close boiling points via extraction using a non-polar hydrocarbon solvent and water is described. The water may be added to a stream containing both bis-(2-aminoethyl)ether and N-(2-methoxyethyl)morpholine before extraction with the non-polar hydrocarbon is performed. The N-(2-methoxyethyl)morpholine is selectively removed by the hydrocarbon.

20220319710, Oct 6, 2022

Jun 14, 2022

17/839728

- San Francisco CA, US
Pauline Anne Basaran - Corte Madera CA, US
Stacey Ilene Rettus - Greenbrae CA, US
Michael Jurgen Strasser - San Francisco CA, US
Imraan Aziz - Oakland CA, US
John Paul Walton - San Francisco CA, US
Zachary Michael Saul - San Francisco CA, US

G16H 50/20
A61B 5/08
A61B 5/18
A61B 5/00
G16H 50/70
G16Z 99/00
G08B 21/02
G01N 33/497
G01N 33/98
A61B 5/097

A method and system for monitoring a user's intoxication including receiving a set of signals, derived from a set of samples collected from the user at a set of time points; providing a sobriety task to the user proximal to a time point of the set of time points; generating a performance dataset characterizing performance of the sobriety task by the user; receiving a supplementary dataset characterizing a demographic profile of the user and/or a physiological state of the user; determining a set of values of an intoxication metric, derived from the set of signals; generating a predicted temporal profile of the intoxication metric for the user based upon the set of values, the set of time points, and the supplementary dataset; generating an analysis of the user's sobriety based upon the performance dataset and the predicted temporal profile; and providing a notification to the user based upon the analysis.

20210072232, Mar 11, 2021

Nov 2, 2020

17/087266

- Northfield IL, US
Steven Portela - San Francisco CA, US
Jonathan Ward - San Francisco CA, US
John Walton - Cambridge MA, US
Jonathan William Kiel - Ardmore PA, US
Jeffrey Mekler - Cambridge MA, US
Shireen Yates - San Francisco CA, US
Jacob Mooney - Westford MA, US

G01N 33/52
G01N 33/02
G01N 33/53

A system and method for detecting harmful substances within a consumable sample comprising: receiving a consumable sample at a first chamber of a test container; transforming the consumable sample into a homogenized sample upon processing of the consumable sample; delivering the homogenized sample to a second chamber of the test container, wherein the second chamber is configured to receive the homogenized sample comprises an outlet port; mixing the homogenized sample with a process reagent within the second chamber, thereby producing a dispersion; transmitting a volume of the dispersion to an analysis chamber, of the test container, configured to position a detection substrate proximal the port of the second chamber and comprising a detection window that enables detection of presence of the allergen; and detecting presence of the allergen within the consumable sample by way of an optical sensor configured to detect signals indicative of the allergen through the detection window.

20200237301, Jul 30, 2020

Apr 10, 2020

16/846110

- San Francisco CA, US
Pauline Anne Basaran - San Francisco CA, US
Stacey Ilene Rettus - San Francisco CA, US
Michael Jurgen Strasser - San Francisco CA, US
Imraan Aziz - San Francisco CA, US
John Paul Walton - San Francisco CA, US
Zachary Michael Saul - San Francisco CA, US
Christopher Thomas Faykus - San Francisco CA, US

A61B 5/00
A61B 5/097
A61B 5/11
G08B 21/04
A61B 5/18
G01N 33/497
G08B 21/02
A61B 5/08

A method and system for monitoring a user's intoxication including receiving a set of signals, derived from a set of samples collected from the user at a set of time points; providing a sobriety task to the user proximal to a time point of the set of time points; generating a performance dataset characterizing performance of the sobriety task by the user; receiving a supplementary dataset characterizing a demographic profile of the user and/or a physiological state of the user; determining a set of values of an intoxication metric, derived from the set of signals; generating a predicted temporal profile of the intoxication metric for the user based upon the set of values, the set of time points, and the supplementary dataset; generating an analysis of the user's sobriety based upon the performance dataset and the predicted temporal profile; and providing a notification to the user based upon the analysis.

20200200738, Jun 25, 2020

Feb 14, 2020

16/791116

- San Francisco CA, US
John Paul Walton - San Francisco CA, US
Jonathan William Kiel - San Francisco CA, US
Jeffrey Mekler - San Francisco MA, US
Shireen Taleghani - San Francisco CA, US
Jacob Mooney - San Francisco CA, US

G01N 33/52
G01N 33/53
G01N 33/02

A self-contained apparatus and methods for detecting the presence of any specified substance in any medium. A sample of the medium is placed in a capsule, along with a solvent and a sensor configured to test for a target analyte. The solvent comes into contact with the medium in the capsule, and the capsule is agitated to create a dispersion in the solvent of a portion of any target analyte present in the medium. A release mechanism configured to cause conduction of the dispersion to the sensor, so that the sensor produces an indication of presence of the target analyte if the target analyte is present in the medium. The apparatus uses a disposable capsule where the medium in question is placed and the disposable capsule is placed inside a reader and analyzed for presence of the harmful substance.

20200110079, Apr 9, 2020

Dec 5, 2019

16/704184

- San Francisco CA, US
Steven Portela - San Francisco CA, US
Jonathan Ward - San Francisco CA, US
John Walton - San Francisco CA, US
Jonathan William Kiel - San Francisco CA, US
Jeffrey Mekler - San Francisco CA, US
Shireen Yates - San Francisco CA, US
Jacob Mooney - San Francisco CA, US
Dane Weitmann - San Francisco CA, US
Joseph Horrell - San Francisco CA, US

G01N 33/53
G01N 33/02
G01N 33/543

A system and method includes a test container for detecting a target substance in a consumable sample, where the test container includes a test container body defining a test container top, a test container bottom opposing the test container top, a first chamber proximal the test container top, and a second chamber proximal the test container bottom, a magnetic diaphragm situated between the first chamber and the second chamber, the magnetic diaphragm obstructing flow of the consumable sample, and the magnetic diaphragm including a magnetic element embedded in the magnetic diaphragm, and a driving element geometrically complementary to the first chamber, the driving element including a consumable sample grinding feature protruding from a surface of the driving element.