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.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7647781 | Loss reduction device for the production of ice cream A device for reducing losses relating to the start-up of an industrial production line for ice cream provided with a traditional freezer. The invention relates to a device enabling the tubing used to convey the ice cream from the freezer to the dosing machine. Said ... | 01/19/2010 |
| 7405599 | Magnetic transistor with the OR/NOR/NAND/AND functions A magnetic transistor circuit with the OR, NOR, NAND and AND functions has a first, a second, a third, a fourth magnetic transistor, and a routing line. These four magnetic transistors as ordinary transistors that can be turned on or turned off by the control of sev... | 07/29/2008 |
| 7061987 | Wide-band analog front-end for DSL applications An analog front-end circuit and method that supports multiple digital subscriber line (DSL) standards, including asymmetric digital subscriber line (ADSL) and very-high speed digital subscriber line (VDSL) is disclosed. The circuit incorporates multiple circuit bloc... | 06/13/2006 |
| 7036431 | Identification devices and methods for producing the identification devices Identification devices and methods of producing the identification devices are presented. Some embodiments of identification devices comprise a structure having a micro-optic image and a layer that is overprinted onto the surface of the structure. In some embodiment... | 05/02/2006 |
| 7038758 | Liquid crystal cell, display device, and particular method of fabricating liquid crystal cell by dropping and capillary action Bubbles mixed in liquid crystal injected into a liquid crystal cell are pushed out through an outlet. The outlet has a space secured to a maximum limit by an extended sealing portion reaching the outer peripheral end surfaces of substrates, and a step with a color f... | 05/02/2006 |
| D519989 | Remote control | 05/02/2006 |
| D517514 | Optical disk apparatus | 03/21/2006 |
| 7010327 | Portable radiotelephone for automatically dialing a central voice-activated dialing system A portable radiotelephone can be shifted between a first condition wherein the radiotelephone does not receive or transmit voice communications by radiotelephone transmissions over radiotelephone channels and a second condition wherein the radiotelephone receives an... | 03/07/2006 |
| 6909781 | DSL line tester An analog front end system comprising a digital-to-analog converter, a line driver, a multiple-input device, and an analog-to-digital converter is presented. Furthermore, a method for DSL line testing comprising the steps of providing test stimuli to and receiving r... | 06/21/2005 |
| 6879625 | System and method for providing cancellation of interference in a repeater configuration with remote loop powering A system and method for providing cancellation of interference in a repeater configuration is disclosed, wherein the repeater is located between a first endpoint and a second endpoint. A data signal received from the first end point is amplified in accordance with a... | 04/12/2005 |
| 6865426 | Adaptive data security systems and methods The present disclosure relates to a method for communicating and applying adaptive security to a data stream comprising a plurality of data packets. The method comprises the steps of identifying a desired security level range and a desired actual security level whic... | 03/08/2005 |
| 6861671 | Thin film transistor liquid crystal display and fabrication method thereof A thin film transistor liquid crystal display (TFT-LCD) and fabrication method thereof. The fabrication method includes depositing a first metal layer on a transparent substrate, patterning the first metal layer to form at least two adjacent gate electrodes, forming... | 03/01/2005 |
| 6861578 | Method for plant protection against insects or nematodes by transformation with a nucleic acid encoding equistatin A method of protecting a plant or part of a plant from insect or nematode infestation is disclosed herein. The method includes the steps of: inserting into the genome of cells or tissue from a plant a sequence coding for equistatin operably linked to a promoter sequ... | 03/01/2005 |
| 6858901 | ESD protection circuit with high substrate-triggering efficiency An ESD protection circuit with high substrate-triggering efficiency. The circuit comprises a multi-finger-type device having a plurality of finger gates below which a parasitic BJT is formed, a plurality of finger sources, each of which is an emitter of one parasiti... | 02/22/2005 |
| D502160 | Mobile phone | 02/22/2005 |
| 6853579 | Non-refresh four-transistor memory cell An exemplary four-transistor random access memory cell includes a first transistor of a first conductivity type having a gate coupled to a word line and a source coupled to a bit line, a second transistor of the first conductivity type having a gate coupled to a dra... | 02/08/2005 |
| 6851046 | Jumping to a recombine target address which is encoded in a ternary branch instruction A system and method for performing a general ternary branch instruction is provided. Additionally, different approaches are provided for reducing the complexity of a ternary branch instruction word and corresponding hardware. ... | 02/01/2005 |
| 6841466 | Method of selectively making copper using plating technology A method of forming a more uniform copper interconnect layer is described. A dielectric layer, electroconductive (EC) layer, and a photoresist layer are sequentially deposited on a substrate. An opening in the photoresist is etched through the dielectric layer while... | 01/11/2005 |
| D499718 | Remote control | 12/14/2004 |
| 6804318 | System and method for using a network timing reference circuit as a phase detector in a synchronization loop An improvement to system clock synchronization corrector in a digital transceiver allows the generation of a phase error correction signal for use in an imbedded clock synchronization control loop without the use of additional transmitted information or additional e... | 10/12/2004 |
| 6803625 | Method with trench source to increase the coupling of source to floating gate in split gate flash A split-gate flash memory cell having improved programming and erasing speed with a tilted trench source, and also a method of forming the same are provided. This is accomplished by forming two floating gates and their respective control gates sharing a common sourc... | 10/12/2004 |
| 6801621 | Circuit and method for active termination of a transmission line interface An improved line driver-hybrid and method for increasing the power efficiency, signal accuracy, and stability of a transmit signal on a transmission line are disclosed. The improved line driver-hybrid uses a negative feedback control loop, thereby enhancing operatio... | 10/05/2004 |
| 6405038 | Cellular carrier selection system incorporating a preferred list of system identification codes (SIDs) corresponding to preferred cellular carriers A method and an apparatus for selecting a cellular carrier frequency for accessing cellular airtime services based upon a list of preferred system identification codes (SIDs). A cellular telephone is programmed to accept into memory a list of preferred SI... | 06/11/2002 |
| 6144733 | Ring filter for pots communication system An line interface circuit at a central office of a telecommunication system provides improved noise immunity to a ring signal. In accordance with one aspect of the invention, the line interface circuit includes a signal line having a first end for connect... | 11/07/2000 |
| 5685449 | Lug lid for materials container with sacrificial depressions and annular expansion bead A lug lid (10) which closes an open head pail (12) has lugs (31) that overlap the annular rim (19) of the pail and which are crimped thereabout to attach the lid to the pail. An annular expansion bead (38) is formed in the lid to enable the lid to expand ... | 11/11/1997 |
