Explore WARF Inventions and Patents
WARF’s portfolio of more than 1,700 technologies covers a wide range of categories, including analytical instrumentation, pharmaceuticals, food products, agriculture, research tools, medical devices, pluripotent stem cells, clean technology, information technology and semiconductors.
Information summaries, which describe each technology and its applications, benefits, inventors and patent status, can be downloaded, printed and shared by clicking on the technology category links to the left on this page.
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A patient can be given a retinoid or retinoic acid receptor agonist such as all-trans RA (ATRA), 13-cis RA (isotretinoin) or 9-cis RA (alitretinoin). These compounds target the mechanisms that cause sleep apnea in two ways. First, they increase the respiratory drive (urge to breathe). Additionally, they reduce the apneic threshold (the level of CO2 necessary for the induction of breath) to normal levels.
The new process begins with a polymer blend with two properly selected polymer materials, such as polypropylene (PP) and high-density polyethylene (HDPE), or PP and low-density polyethylene (LDPE), which exhibit a dispersed secondary phase at sub-microscale in the primary matrix. The polymer blend is heated along with a supercritical fluid in an extruder to produce a melt, which is then extruded into gas-laden pellets. The gas-laden pellets can be fed into the injection barrel of a typical machine, plasticized and then injected into a mold cavity (or cavities) where the final part is made.
The process forms a lightweight component with microscale air cavities. Upon tensile loading, debonding of the secondary phase facilitates the interconnection of microcellular voids to form channels such that the stretched component becomes a bundle of fibrils. Compared to other toughening methods, this method achieves a more significant improvement in ductility and toughness. It also has the benefit of higher production efficiency, better dimensional stability, and greater design freedom thanks to the foamed injection molding process.
In the system, a solar cell panel is supported by flexible posts. The posts are made from a composite material, including a liquid crystal elastomer. This material has properties that cause it to contract and tilt when exposed to heat. To further exploit such properties, the material is embedded with carbon nanotubes that act as miniature heat sources, absorbing sunlight and giving off warmth.