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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| Application No. | Application Title | Issue Date |
| 20100226294 | Full duplex network radio bridge with low latency and high throughput A full duplex radio bridge using two transceivers coupled to a first packet network, one for transmitting data toward another radio bridge coupled to a second packet network, and the other for receiving data transmitted from the first packet network toward said second p... | 09/09/2010 |
| 20100142419 | BI-DIRECTIONAL BRIDGE CIRCUIT HAVING HIGH COMMON MODE REJECTION AND HIGH INPUT SENSITIVITY A bidirectional communications interface is provided that connects a transmitter and a receiver, or a transceiver, to a transmission line. Under an embodiment, the bidirectional interface generates positive and negative polarity data signals using two separate different... | 06/10/2010 |
| 20060256744 | Bi-directional bridge circuit having high common mode rejection and high input sensitivity A bidirectional communications interface is provided that connects a transmitter and a receiver, or a transceiver, to a transmission line. Under an embodiment, the bidirectional interface generates positive and negative polarity data signals using two separate different... | 11/16/2006 |
| 20060209730 | Bi-directional audio bridge Two half duplex communicators from separate networks each have an audio input port, an audio output port, and a terminal for receiving an external keying signal. Audio signal paths link respective audio output ports with respective audio input ports. Voice actuated circ... | 09/21/2006 |
