Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7914569 | Heart valve prosthesis and methods of manufacture and use A heart valve prosthesis is provided having a self-expanding multi-level frame that supports a valve body comprising a skirt and plurality of coapting leaflets. The frame transitions between a contracted delivery configuration that enables percutaneous transluminal ... | 03/29/2011 |
| 6889394 | Faucet handle safety device A device for covering a water faucet handle, and thereby denying access to the handle by small children and others lacking the mental discernment to appreciate and consider the consequences of their actions. The device comprises a generally L-shaped mounting member ... | 05/10/2005 |
| 6854158 | Erasing device This invention discloses an erasing device that can be held in the same manner as a writing instrument. The eraser is stored in a tube assembly and a rolling mechanism is used to slide the eraser out of the tube assembly for use. The rolling mechanism prevents the e... | 02/15/2005 |
| 6805066 | Modular floating swim platform A floating platform that has a flat low profile for use by swimmers, divers, boaters, and those engaged in other activities on water. The platform is used alone or as a module in combination with other such floating platform modules; attaching the modules to form a ... | 10/19/2004 |
