...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8043802 | Fluorescence based biosensor A novel biosensor comprises at least one fluorophore and at least two quenchers, and is capable of selectively and specifically detecting the presence of an ion in the presence of other ions. ... | 10/25/2011 |
| 7906320 | Fluorescence based biosensor A novel biosensor comprises at least one fluorophore and at least two quenchers, and is capable of selectively and specifically detecting the presence of an ion in the presence of other ions. ... | 03/15/2011 |
| 7892734 | Aptamer based colorimetric sensor systems The present invention provides an aptamer-based calorimetric sensor system for determining the presence and optionally the concentration of an analyte in a sample. Methods of utilizing the sensor system and kits that include the sensor also are provided. The sensor ... | 02/22/2011 |
| 7799554 | Lateral flow devices An analytical test for an analyte comprises (a) a base, having a reaction area and a visualization area, (b) a capture species, on the base in the visualization area, comprising nucleic acid, and (c) analysis chemistry reagents, on the base in the reaction area. The... | 09/21/2010 |
| 7612185 | Nucleic acid biosensors Sensors comprising aptazymes capable of detecting the presence and concentration of effectors, as well as methods of using such sensors, are disclosed. ... | 11/03/2009 |
| 7534560 | Simple catalytic DNA biosensors for ions based on color changes Disclosed are compositions and methods for the sensitive and selective detection of ions using nucleic acid enzymes and DNA modified microparticles. ... | 05/19/2009 |
| 7485419 | Biosensors based on directed assembly of particles A sensor system for detecting an effector or cofactor comprises (a) a nucleic acid enzyme; (b) a substrate for the nucleic acid enzyme, comprising a first polynucleotide; (c) a first set of particles comprising a second polynucleotide at least partially complementar... | 02/03/2009 |
| 7332283 | Fluorescence based biosensor A novel biosensor comprises at least one fluorophore and at least two quenchers, and is capable of selectively and specifically detecting the presence of an ion in the presence of other ions. ... | 02/19/2008 |
| 6890719 | Fluorescence based biosensor A novel biosensor comprises at least one fluorophore and at least two quenchers, and is capable of selectively and specifically detecting the presence of an ion in the presence of other ions. ... | 05/10/2005 |