ClearSign Technologies
NASDAQ:CLIRClearSign Technologies Corporation designs and develops technologies to enhance operational performance, energy efficiency, emission reduction, safety, and overall cost-effectiveness of industrial and commercial systems in the United States and the People's Republic of China. Its ClearSign Core Burner Technology consists of an industrial burner body and a downstream porous ceramic structure or metal flame stabilizing device; ClearSign Core Plug & Play Burner technology provides direct burner replacement for traditional refinery process heaters; and ClearSign Eye Flame Sensor, an electrical flame sensor for industrial applications. The company also provides ClearSign Core Boiler Burner; and ClearSign Core Flaring Burners technologies. It serves energy, institutional, commercial and industrial boiler, chemical, and petrochemical industries. The company was formerly known as ClearSign Combustion Corporation and changed its name ClearSign Technologies Corporation in November 2019. ClearSign Technologies Corporation was incorporated in 2008 and is headquartered in Tulsa, Oklahoma.
Electro-Sensors
NASDAQ:ELSEElectro-Sensors, Inc. engages in the manufacture and selling of industrial production monitoring and process control systems. Its products include shaft speed witches; wireless hazard monitoring; temperature sensor; slide gate and angle position; bearing sensors and belt alignment; and motor drive control. The company was founded by James P. Slattery in 1965 and is headquartered in Minnetonka, MN.
International Isotopes
OTCMKTS:INISInternational Isotopes Inc. manufactures and sells nuclear medicine calibration and reference standards, cobalt-60 products, and radiopharmaceutical and radiochemical contract manufacturing services in the United States and internationally. It operates through four segments: Nuclear Medicine Standards, Cobalt Products, Radiochemical Products, and Fluorine Products. The Nuclear Medicine Standards segment manufactures sources and standards associated with single photon emission computed and positron emission tomography imaging, patient positioning, and calibration or operational testing of dose measuring equipment for the nuclear pharmacy industry. This segment also offers flood sources, dose calibrators, rod sources, flexible and rigid rulers, spot and pen point markers, and various specialty design items. The Cobalt Products segment produces bulk cobalt; fabricates cobalt capsules for radiation therapy and various industrial applications; and recycles expended cobalt sources. The Radiochemical Products segment produces and distributes various isotopically pure radiochemicals and sodium iodide I-131 generic drug product for medical, industrial, and research applications. The Fluorine Products segment is involved in the production of small-scale qualification samples of high purity fluoride gas for various industrial applications, as well as development of laboratory and analytical processes required to support the planned uranium de-conversion and fluorine extraction facility. The company sells its products directly to end users and distributors. International Isotopes Inc. was incorporated in 1995 and is headquartered in Idaho Falls, Idaho.
Sypris Solutions
NASDAQ:SYPRSypris Solutions, Inc. engages in the provision of truck components, oil and gas pipeline components, and aerospace and defense electronics. It operates through Sypris Technologies and Sypris Electronics segments. The Sypris Technologies segment is involved in selling of forged, machined, welded, and heat-treated steel components primarily for the heavy commercial vehicle and high-pressure energy pipeline applications. The Sypris Electronics segment includes circuit card and full box build manufacturing, high reliability manufacturing, systems assembly and integration, design for manufacturability and design to specification work. The company was founded in 1997 and is headquartered in Louisville, KY.