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 |
| 7302813 | Method and device for bending glass panes in pairs In a method for bending, in pairs, panes placed one upon the other, heated to their softening temperature, the pair or panes is deposited on a bending frame and prebent under action of the force of gravity. The prebent pair of panes is transferred onto a suction ben... | 12/04/2007 |
| 6505484 | Forming method of silica glass and forming apparatus thereof A silica glass forming method is a method of pressing a synthetic silica bulk having at least a set of opposed surfaces, on the surfaces under a high temperature condition by a presser, wherein an elastic member with permeability is placed between the pre... | 01/14/2003 |
| 4246313 | Heat-resistant composite material and method of making same Composite article, and method of producing same, comprising a heat-resistant woven fabric substrate having a continuous heat and wear-resistant coating thereon for handling hot glass articles and the like without marring same. The heat-resistant flexible ... | 01/20/1981 |
| 4216005 | Glass conveying roll and a method of forming it A roll for conveying flat glass at elevated temperatures over extended periods of time without material damage to the supported surface of the glass, and a procedure for preparing such rolls. The roll is built up of thin asbestos discs compressed endwise ... | 08/05/1980 |
| 3973943 | Apparatus for supporting shaped glass sheets for tempering An outline ring-like tempering mold for supporting shaped glass sheets after they are shaped and during the time they are rapidly quenched, comprising a rigid outline metal rail having an outline slightly inward that of the shaped glass sheet and a bar of... | 08/10/1976 |
| 3954556 | Inorganic composition for high temperature use and method of forming a millboard therefrom An inorganic composition useful as material for Lehr rolls at temperatures above 500°C consists essentially of 15-45% chrysotile asbestos, 40-75% talc component and 2-35% inorganic binder. The composition is also used in manufacturing millboard by formin... | 05/04/1976 |
