California Institute of Technology

Ms2 Technologies, LLC

Other

Smiths Detection Inc.

Smiths Detection-pasadena, Inc.

Erik J Severin

Nathan S Lewis

Adam J Matzger

Lawrence C Kay

Brett J Doleman

Luis A Aguirre

Bernard Wong

Michael S Freund

David M Kelso

Beth C Munoz

Shawn M Briglin

Steven A Sunshine

Michael Freund

A process by which molten solder is purified in-situ, making the soldering process more efficient and yielding better results, particularly for lead-free soldering. Lead-free solder becomes practical for use since the temperature for reliable soldering is reduced. A layer of active additive is maintained on the surface of molten solder for scavenging metal oxide from the solder and assimilating metal oxide into a liquid layer. The active additive is an organic liquid having nucleophilic and/or electrophilic groups. As an example, a layer of dimer acid maintained on a wave soldering apparatus scavenges metal oxide from the bath, and assimilates dross that may form on the surface. Scavenging metal oxide cleanses the bath and lowers viscosity of the solder, and PC boards or the like soldered on the wave have reliable solder joints.

Soldering process

Provided are compositions and systems useful in remote monitoring of chemical hazards, air quality, and medical conditions, for example, robotic systems to search for and detect explosives, mines, and hazardous chemicals. In addition, the methods, systems and compositions of the invention provide the ability to mine data from a database containing a plurality of chemical fingerprints.

Methods for remote characterization of an odor

Chemical sensors for detecting analytes in fluids comprising a plurality of alternating nonconductive regions (comprising a nonconductive material) and conductive regions (comprising a conductive material). In preferred embodiments, the conducting region comprises a nanoparticle. Variability in chemical sensitivity from sensor to sensor is provided by qualitatively or quantitatively varying the composition of the conductive and/or nonconductive regions. An electronic nose for detecting an analyte in a fluid may be constructed by using such arrays in conjunction with an electrical measuring device electrically connected to the conductive elements of each sensor.

Colloidal particles used in sensing array

The present invention relates to systems and methods for measuring and testing a product using artificial olfactometry and analytical data sensory to identify preferences. The system accurately facilitates a consumer's choice between products using descriptors of similar yet different products. The system and methods provide an objective recommendation based upon analytical descriptors and attributes of particular products. The system eliminates the subjective recommendations of persons familiar with many comparable and related products and thereby makes objective recommendations between products.

System for measuring and testing a product using artificial olfactometry and analytical data

Chemical sensors for detecting the activity of a molecule or analyte of interest is provided. The chemical sensors comprise and array or plurality of sensors that are capable of interacting with a molecule of interest, wherein the interaction provides a response fingerprint. The fingerprint can be associated with a library of similar molecules of interest to determine the molecule's activity and diffusion coefficient.

Use of an array of polymeric sensors of varying thickness for detecting analytes in fluids

The present invention relates to methods for matching and validating the response intensity of a sensor array to an odorant with the detection threshold of a human nose.

Method for validating that the detection ability of a sensor array mimics a human nose detection ability

The present invention provides methods for detecting the presence of an analyte indicative of various medical conditions, including halitosis, periodontal disease and other diseases are also disclosed.

Medical applications of artificial olfactometry

A statistical metric, based on the magnitude and standard deviations along linear projections of clustered array response data, is utilized to facilitate an evaluation of the performance of detector arrays in various vapor classification tasks. This approach allows quantification of the ability of arrays of different types including carbon black-insulating polymer composite chemiresistor sensors, tin oxide sensors and bulk conducting organic polymer sensors to distinguish between analytes. The evaluation of questions such as the optimal number of detectors required for a specific task, whether improved performance is obtained by increasing the number of detectors in a detector array, and how to assess statistically the diversity of a collection of detectors in order to understand more fully which properties are underrepresented in a particular set of array elements, are addressed.

Growing community of inventors

San Marino, CA, United States of America

Erik J Severin