Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7648564 | Air bypass system for gas turbine inlet An air bypass system for a gas turbine inlet filter house having a power augmentation system. The air bypass system may include a duct positioned on the inlet filter house about the power augmentation system and a damper positioned within the duct so as to open and ... | 01/19/2010 |
| 7636688 | Electronic bill processing with multi-level bill information storage A method of electronically presenting billing information, includes receiving billing information associated with a plurality of different billers, different portions of which represent bills for different payors. Requests are received from respective payors for cur... | 12/22/2009 |
| 7578130 | Methods and systems for combustion dynamics reduction Methods and systems for combustion dynamics reduction are provided. A combustion chamber may include a first premixer and a second premixer. Each premixer may include at least one fuel injector, at least one air inlet duct, and at least one vane pack for at least pa... | 08/25/2009 |
| 7034582 | Electronic circuits A high voltage AC power supply circuit for a capacitive load CL, such as an electroluminescent lamp, includes a low voltage DC supply, an inductor L and a FET S in series. The FET S can be pulsed so that the inductor L generates a voltage to charge the ca... | 04/25/2006 |
| 7001151 | Gas turbine bucket tip cap A tip cap for a turbine blade. The tip cap may include a HS-188 sheet material with a thickness of less than about 0.079 inches (about 2 millimeters) and a number of holes positioned in the sheet material. ... | 02/21/2006 |
| 6997679 | Airfoil cooling holes An airfoil. The airfoil may include a first number of cooling holes and a second number of cooling holes positioned within the airfoil. The first number of cooling holes and the second number of cooling holes each may include a turbulated section and a non-turbulate... | 02/14/2006 |
| 6264069 | Pulsation dampener for beverage dispensers and fountain equipment A pulsation dampener for beverage dispensers and fountain equipment decreases the irregularities in concentrate flow from a single action pump and volumetric dispensing valve combination within a beverage dispenser. The pulsation dampener includes a tube ... | 07/24/2001 |
