...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 8173171 | Hydrogel microparticle composition, application thereof and method for preparing the same Disclosed herein is a method for preparing a hydrogel microparticle composition. A dispersion including 1 part by weight of N-isopropyl acrylamide, about 0.1-0.5 part by weight of chitosan, about 0-0.05 part by weight of N,N′-methylene bisacrylamide, about 0.1-0.5... | 05/08/2012 |
| 7936555 | Method for fabricating flexible super capacitor A flexible super capacitor including a pair of flexible electrodes and a separator film is disclosed. Each flexible electrode includes a carbon fiber layer and a collector formed on a surface of the carbon fiber layer. The pair of flexible electrodes has two outer s... | 05/03/2011 |
| 7768771 | Supercapacitor structure and method for manufacturing the same A laminate electrode of a bendable supercapacitor has a carbon fabric element and an electrically conductive current collector element secured by staple-shaped metallic fasteners or metallic wires so as to prevent two elements from being taken apart when the laminat... | 08/03/2010 |
| 7727444 | Apparatus and method for manufacturing nonwoven fabric An apparatus includes a spinning nozzle, a fiber drawing device and a water spray device. The spinning nozzle has spinnerets and a spinning solution is filled therein. The spinning solution includes a solvent and a fiber material. The solvent includes N-Methylmorpho... | 06/01/2010 |
| 7686981 | Dispersions of conductive carbon materials and methods for preparing the same A method for preparing a dispersion of conductive carbon materials is provided. The method includes dissolving a sulfonated chitosan in an aqueous solution, wherein the amount of the sulfonated chitosan of the solution is about 0.1-3 wt %. Then, a conductive carbon ... | 03/30/2010 |
| 7600990 | Electrostatic spinning apparatus An electrostatic spinning apparatus includes a feeding device, at least one linear electrode, at least one collecting electrode, and a high-voltage power supply. The feeding device includes a tank and a roller and an electrostatic spinning solution is contained in t... | 10/13/2009 |
| 7585331 | Long-term antibiotic and deodorant textile with mesoporous structure and processing method thereof A long-term antibiotic and deodorant textile with mesoporous structure and processing method thereof are provided. At first, a textile is dipped into an aqueous solution of a surfactant containing nanoparticles. An aqueous solution of a silicon source is prepared an... | 09/08/2009 |
| 7264044 | Heat exchange structure A heat exchange structure includes at least three wave-shaped non-woven cloth layers. Each wave-shaped non-woven cloth layer has a plurality of crest tops and trough bottoms. Adjacent wave-shaped non-woven cloth layers are interconnected at intersections of crest to... | 09/04/2007 |
| 7052765 | Method for manufacturing antibacterial polyester master batches and fibers both containing nano-silver particles A method for manufacturing antibacterial polyester master batches and fibers containing nano-silver particles, the method includes the acts of: mixing a reducing agent, glycol and a silver precursor together to compose a first mixture; esterifying terephthalic acid ... | 05/30/2006 |