Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7347685 | Torch manifold with integrated nozzles A manifold for a torch including a gas distribution portion for distributing gas directed into the manifold to two or more gas channels, a nozzle in each gas channel, an air passage in the manifold proximate each nozzle, and a flame tube portion including a channel ... | 03/25/2008 |
| 7101514 | Control devices for evaporative chemical mixing/reaction An improved chemical mixing micro-device with features on the micro- and nano-scale. The micro-device is comprised of at least one chemical inlet port and one chemical outlet port, a micro-evaporator, a micro-chamber and a micro-initiator. Also, a method of mixing a... | 09/05/2006 |
| 5511973 | Ignition cover and venturi mounting clip A burner support arrangement for a domestic stove having a platform with apertures for receiving two burner tubes, and raised rails extending between the apertures and a central igniter. Snap on covers form igniter tubes with the raised rails. A support c... | 04/30/1996 |
| 4376627 | Burner assembly with parallel passages for fuel and oxidizing gas Burners operating with combustion air as the combustion-sustaining gas and a fuel, generally a vaporizable liquid fuel, have at least one ceramic body formed with passages for these two fluids allowing heat exchange through the walls separating these pass... | 03/15/1983 |
| 4188937 | Grill for cooking A grill for cooking has a gas burner, a gas igniter adjacent that burner, and a piezo electric spark source. The grill has a metal casting; and the igniter has a bracket that mechanically secures and electrically connects that igniter to that casting, and... | 02/19/1980 |
| 4025281 | Method and apparatus for flaring combustible waste gases Apparatus for flaring combustible waste gases from oil refineries and the like including a vertical flare stack, a continuously burning pilot burner mounted adjacent the flare stack and a temporary flame retention burner mounted in close proximity to the ... | 05/24/1977 |
| 4020821 | Gas-fired smooth top range A gas cooking range of the smooth top type has four burners positioned under a single plate of heat-resistant glass/ceramic material; and a single igniter and safety control assembly is centrally positioned between the burners. The supply of gas to each o... | 05/03/1977 |
