US Pat. No. 9,250,228

METHOD AND SYSTEM FOR REMOTELY MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A method for remotely monitoring intoxication of a user, comprising:
prompting the user to provide a breath sample at a time point by way of an application executing at a mobile computing device;
at a breath sample acquisition device in communication with the mobile computing device,
transmitting a breath sample signal, derived from reception of the breath sample from the user, to the mobile computing device,
and

within a time interval, broadcasting a unique signature indicative of the breath sample acquisition device, wherein the time
interval is proximal in time to the time point of breath sample provision from the user;

using a sensor of the mobile computing device, generating an authentication signal derived from detection of the unique signature
in association with the breath sample from the user;

at a processing system in communication with the mobile computing device, receiving the breath sample signal and the authentication
signal;

generating a verification assessment that validates provision of the breath sample by the user, based upon the breath sample
signal and the authentication signal;

determining a value of an intoxication metric for the user based upon the breath sample signal; and
transforming the verification assessment and the value of the intoxication metric into an analysis of intoxication of the
user.

US Pat. No. 10,034,635

METHOD AND SYSTEM FOR MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A method for informing a user of an intoxication state over time, comprising:at a sample receiving module coupled to a wrist-borne device, receiving a set of samples from a body region of the user within a time window;
at a processing subsystem in communication with the wrist-borne device, generating a sample signal derived from an interaction between the set of samples and a fuel cell sensor in communication with the sample receiving module;
at the processing subsystem, determining a predicted temporal profile of an alcohol content metric from the sample signal, the predicted temporal profile including a predicted value of the alcohol content metric at a time point outside of the time window; and
transmitting a set of commands, from the processing subsystem to a user interface device coupled to at least one of the processing subsystem, the sample receiving module, and the wrist-borne device, that prompt the user interface device to provide an output derived from the predicted temporal profile to the user.

US Pat. No. 9,600,632

METHOD AND SYSTEM FOR MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A method for monitoring intoxication of a user, comprising:
at a sample receiving module, receiving a signal derived from a breath sample collected from the body of the user at a first
time point;

at an aggregation module of a user interface device in communication with the sample receiving module, retrieving a supplementary
dataset derived from at least one application executing at the user interface device;

at a processing subsystem in communication with at least one of the sample receiving module and the user interface device,
determining a value of an intoxication metric derived from the signal;

at the processing subsystem, generating a predicted temporal profile of the intoxication metric of the user based upon the
value of the intoxication metric, the first time point, and the supplementary dataset;

with the user interface device, providing a notification to the user based upon the predicted temporal profile, the notification
indicative of an estimated future intoxication state associated with an estimated future time point later than the first time
point, thus facilitating monitoring of intoxication of the user.

US Pat. No. 9,996,673

METHOD AND SYSTEM FOR MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A method for monitoring intoxication of a user, comprising:at a sample receiving module, receiving a signal derived from a sample collected from the body of the user at a receipt time point;
at a processing subsystem, determining a value of an intoxication metric, from the signal, upon receiving information derived from the signal by way of a data link coupled to the processing subsystem and the sample receiving module;
at the processing subsystem, generating a predicted temporal profile of the intoxication metric for the user based upon the value of the intoxication metric and the receipt time point; and
with a user interface device in communication with the sample receiving module, providing a notification to the user based upon the predicted temporal profile, the notification indicative of an estimated future intoxication state associated with an estimated future time point later than the receipt time point.

US Pat. No. 9,192,334

METHOD AND SYSTEM FOR MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A method for informing a user of an intoxication state over time, comprising:
upon receiving an input provided by the user at a user interface of a wrist-borne mobile computing device, prompting the user
to provide a breath sample to a sample receiving module in communication with the wrist-borne mobile computing device, at
a first time point;

at a processing subsystem in communication with the wrist-borne mobile computing device, receiving a breath sample signal
derived from the breath sample;

at the processing subsystem, determining a value of a blood alcohol content (BAC) metric from the breath sample signal;
at the processing subsystem, generating a predicted temporal profile of the blood alcohol content metric for the user over
time, including an estimated time point at which the user will reach a state of sobriety, based upon the value of the blood
alcohol content metric and the first time point; and

transmitting commands, from the processing subsystem to the wrist-borne mobile computing device, that prompt the wrist-borne
mobile computing device to display information from an analysis derived from the predicted temporal profile and informative
of the estimated time point at the user interface, thus informing the user of the intoxication state over time.

US Pat. No. 9,662,065

METHOD AND SYSTEM FOR MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A method for informing a user of an intoxication state, comprising:
upon receiving an input from the user at a wrist-borne mobile computing device associated with the user, prompting the user
to provide a breath sample to a sample receiving module at a first time point;

at a processing subsystem in communication with the sample receiving module, receiving a breath sample signal derived from
the breath sample;

at the processing subsystem, determining a value of a blood alcohol content (BAC) metric from the breath sample signal;
at the processing subsystem, generating a predicted temporal profile of the BAC metric for the user over time, based upon
the value of the BAC metric and the first time point; and

transmitting commands, from the processing subsystem to the wrist-borne mobile computing device, that prompt the wrist-borne
mobile computing device to display information from an analysis derived from the predicted temporal profile at a display of
the wrist-borne mobile computing device, thus informing the user of the intoxication state.

US Pat. No. 9,076,317

METHOD AND SYSTEM FOR MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A method for monitoring intoxication of a user, comprising:
receiving a set of signals, derived from a set of breath samples collected from the body of the user at a set of time points,
at a sample receiving module;

at a processing subsystem, determining a value of an intoxication metric, derived from the set of signals upon receiving information
derived from the set of signals by way of a data link coupled to the processing subsystem;

at the processing subsystem, generating a predicted temporal profile of the intoxication metric for the user based upon the
value of the intoxication metric and the set of time points;

at the processing subsystem, generating an analysis of the user's sobriety based upon the predicted temporal profile; and
at a device comprising a user interface, providing a notification to the user based upon the analysis, thus facilitating monitoring
of the user's intoxication.

US Pat. No. 9,872,649

METHOD AND SYSTEM FOR MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A method for informing a user of an intoxication state over time, comprising:
at a sample receiving module coupled to a wrist-borne device borne on a wrist region of the user, receiving a sample from
the body of the user at a first time point;

at a processing subsystem in communication with the wrist-borne device, receiving a sample signal derived from the sample;
at the processing subsystem, determining a value of a blood alcohol content (BAC) metric from the sample signal;
at the processing subsystem, generating a predicted temporal profile of the blood alcohol content metric for the user over
time, including an estimated time point at which the user will reach a state of sobriety, based upon the value of the blood
alcohol content metric and the first time point; and

transmitting commands, from the processing subsystem to the wrist-borne device, that prompt the wrist-borne device to provide
an output derived from the predicted temporal profile and informative of the estimated time point at a user interface of the
wrist-borne device, thus informing the user of the intoxication state over time.

US Pat. No. 9,788,772

WEARABLE SYSTEM AND METHOD FOR MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A system for transdermal alcohol sensing to be worn near a skin surface of a user, the system comprising:
an alcohol sensor comprising a fuel cell, the fuel cell comprising a sensing electrode and a counter electrode;
an inlet providing a path for a sample from the skin surface of the user to the alcohol sensor;
a housing coupled to the alcohol sensor and comprising a barrier defining an aperture proximal the inlet, the aperture and
the inlet cooperatively controlling flow of the sample to the alcohol sensor;

an electronics subsystem electrically coupled to the alcohol sensor by way of the housing, the electronics subsystem operable
to receive signals from the alcohol sensor and power the alcohol sensor; and

a fastener coupled to the housing and operable to position the aperture proximal the skin surface.

US Pat. No. 9,915,644

METHOD AND SYSTEM FOR REMOTELY MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A method for remotely monitoring intoxication of a user, comprising:
at a breath sample acquisition device in communication with a mobile computing device of the user,
transmitting a breath sample signal, derived from reception of a breath sample from the user, to the mobile computing device,
and

within a time interval, broadcasting a unique signature indicative of the breath sample acquisition device, wherein the time
interval is proximal in time to a time point of breath sample provision from the user, wherein the unique signature is at
least one of an audible signature, a visible signature, and a tangible signature;

using a sensor of the mobile computing device, generating an authentication signal derived from detection of the unique signature
in association with the breath sample from the user;

at a processing system in communication with the mobile computing device, receiving the breath sample signal and the authentication
signal;

generating a verification assessment that validates provision of the breath sample by the user, based upon the breath sample
signal and the authentication signal; and

generating an intoxication assessment of the user based upon the breath sample signal.

US Pat. No. 10,653,358

METHOD AND SYSTEM FOR MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A method for informing a user of an intoxication state over time, comprising:a) at an electronics subsystem comprising a sensor coupled to a device borne on a wrist region of the user, receiving a sample from the user at a first time point;
b) at a processing subsystem in communication with the electronics subsystem, receiving a sample signal derived from the sample;
c) at the processing subsystem, determining a value of an intoxication metric from the sample signal;
d) continuously monitoring an intoxication state of the user by repeating a) to c) at a predetermined set of time points;
e) at the processing subsystem, determining a temporal profile of the intoxication metric for the user over time based on the values of the intoxication metric determined during d); and
f) at a user device in communication with the processing subsystem, displaying information derived from the temporal profile to the user.

US Pat. No. 10,631,767

WEARABLE SYSTEM AND METHOD FOR MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A system for transdermal alcohol sensing, the system comprising:an alcohol sensing device configured to be worn by a user and interface with an alcohol sensor, the alcohol sensing device comprising:
a housing coupled to the alcohol sensor;
a power source coupled to the housing and electrically coupled to the alcohol sensor by way of the housing; and
a fastener coupled to the housing and operable to position the alcohol sensor proximal to a skin surface of the user;
a processing system communicatively coupled to the alcohol sensing device, wherein the processing system is operable to receive a time series of signals from the alcohol sensor and continuously determine a time series of blood alcohol content (BAC) metrics based on the time series of signals; and
an electronic display coupled to the processing system, wherein the processing system is operable to control the electronic display based on the time series of BAC metrics, and wherein the electronic display displays an estimated time point at which the user will reach a state of sobriety, wherein the estimated time point is determined at the processing system based on the time series of BAC metrics.

US Pat. No. 9,740,827

METHOD AND SYSTEM FOR MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A method for monitoring intoxication of a user, comprising:
at a sample receiving module, receiving a signal derived from a breath sample collected from the body of the user at a receipt
time point;

receiving a supplementary dataset characterizing the user;
at a processing subsystem, determining a value of an intoxication metric, derived from the signal upon receiving information
derived from the signal by way of a data link coupled to the processing subsystem and the sample receiving module;

at the processing subsystem, generating a predicted temporal profile of the intoxication metric for the user based upon the
value of the intoxication metric, the receipt time point, and the supplementary dataset; and

at a display of the sample receiving module, providing a notification to the user based upon the predicted temporal profile,
the notification indicative of an estimated future intoxication state associated with an estimated future time point later
than the receipt time point.

US Pat. No. 10,182,752

WEARABLE SYSTEM AND METHOD FOR MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A system for transdermal alcohol sensing to be worn near a skin surface of a user, the system comprising:an alcohol sensor;
a housing coupled to the alcohol sensor;
an inlet retained by the housing and comprising a barrier defining an aperture, wherein the inlet provides a path for a sample from the skin surface of the user to the alcohol sensor through the aperture; and
a microporous membrane permeable to ethanol vapor and substantially impermeable to water.

US Pat. No. 10,352,923

METHOD AND SYSTEM FOR REMOTELY MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A method for remotely monitoring intoxication of a user, comprising:at a first sample acquisition device in communication with a mobile computing device of the user, transmitting a first sample signal, derived from reception of a first sample from the user within a time interval, to the mobile computing device;
at a second sample acquisition device in communication with the mobile computing device of the user, transmitting a second sample signal, derived from reception of a second sample from the user contemporaneously with the time interval;
using an imaging sensor of the mobile computing device, generating an authentication signal derived from a sequence of images of the user captured within the time interval;
at a processing system in communication with the mobile computing device, receiving the first sample signal, the second sample signal, and the authentication signal; and
generating an intoxication metric, based on the first sample signal, the second sample signal, and the authentication signal.

US Pat. No. 10,987,038

WEARABLE SYSTEM AND METHOD FOR MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A system for transdermal alcohol sensing, the system comprising:an alcohol sensor;
a housing coupled to the alcohol sensor;
a processing system coupled to an electronic display and operable to receive signals from the alcohol sensor, wherein at least a portion of the processing system is located remotely from the housing, wherein the processing system is operable to:
determine a value of a blood alcohol content (BAC) metric based on the signals; and
control the electronic display based on the value of the BAC metric; and
in an event that the value of the BAC metric is above a predetermined threshold, triggering an increase in a sampling rate associated with the alcohol sensor;
a fastener coupled to the housing and operable to position the alcohol sensor proximal to a skin surface of the user.

US Pat. No. 10,302,628

METHOD AND SYSTEM FOR REMOTELY MONITORING INTOXICATION

KHN Solutions, Inc., San...

1. A method for verifying a breath sample of a user, comprising:at a mobile computing device of the user:
generating at least one of a first verification signal and a second verification signal;
prompting the user to provide a breath sample;
at the mobile computing device, contemporaneously receiving:
breath sample signal derived from reception of the breath sample from the user at a breath sample acquisition device in communication with the mobile computing device;
the first verification signal, wherein the first verification signal associates the user with the breath sample signal;
the second verification signal, wherein the second verification signal associates the breath sample acquisition device with the breath sample signal;
wherein at least one of the first and second verification signals is transmitted by the breath sample acquisition device;
using a single sensor of the mobile computing device, generating an authentication signal derived from detection of the first and second verification signals in association with the breath sample from the user;
at a processing system in communication with the mobile computing device, receiving the breath sample signal and the authentication signal; and
generating a verification assessment that validates provision of the breath sample by the user, based upon the breath sample signal and the authentication signal.

US Pat. No. 11,006,895

METHOD AND SYSTEM FOR TRANSDERMAL ALCOHOL MONITORING

KHN Solutions, Inc., San...

1. A method for monitoring intoxication of a user, the method comprising:at a transdermal alcohol sensing device coupled to a wrist region of the user:
receiving a set of samples from a skin surface of the user;
determining a set of signals at a sensor of the transdermal alcohol sensing device based on the set of samples;
storing a value associated with the set of signals at memory associated with the transdermal alcohol sensing device;
transitioning to a first operation mode, wherein in the first operation mode, the transdermal alcohol sensing device transmits the value to a client application executing on a user device;
at the client application:
receiving the value;
determining a sweat parameter associated with the set of samples, wherein the sweat parameter comprises a volume parameter;
based on a correlation function, the value, and the sweat parameter, determining an intoxication metric, wherein the intoxication metric comprises a predicted time until sober, and wherein the predicted time until sober decreases as a value of the sweat parameter increases; and
at the transdermal alcohol sensing device:
transitioning to a second operation mode, wherein in the second operation mode, the transdermal alcohol sensing device does not transmit information to the client application.