Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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 |
| 6492867 | Method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio Method and apparatus for improving the efficiency and the dynamic range of a power amplifier operated with signals having a large peak-to-average ratio. A reference level is determined, above which at least a portion of the magnitude of an input signal be... | 12/10/2002 |
| 6435862 | Modulating fuel gas burner A fuel gas burner is provided having a stable flame that undergoes complete combustion in a reduced length combustion region and chamber. The fuel gas burner operates over a wide modulation range with excellent stability and efficiency, and is suitable fo... | 08/20/2002 |
| 6426005 | Sequential descending bed filters with reject/washwater containing impurities being fed to a separate unit for elimination of impurities A treatment system for treating water/wastewater includes two continuously operating granular media filters that are operated together in series. The water/wastewater to be treated is introduced as an influent into the first of the granular media filters ... | 07/30/2002 |
| 6424812 | Toner container and scraper arrangement In the embodiments described in the specification a toner container and scraper arrangement includes a toner bottle having a rectangular cross-section and a flexible wire mounted on a rotatable member at the outlet opening for the toner bottle. The flexib... | 07/23/2002 |
| 6395173 | Method and device for biologically treating a fluid charged with organic materials whilst producing biogas The invention relates to a method for biologically treating a fluid sufficiently charged with organic materials, the method being performed in a tank and the fluid being: first subjected to a mixing and acidifying step (A), subsequently in a heavy load step (B... | 05/28/2002 |
| 6396501 | Memory arrangement for exposure data used in multiple exposures and method for processing multiple exposures A memory aarrangement for exposure data used in multiple exposures stores gray level data which include a high bit portion and a low bit portion. The memory arrangement includes a first memory for storing the high bit portion of the gray level data and a ... | 05/28/2002 |
| 6349024 | DC biased AC corona charging In one corona charging arrangement described in the specification, a coronode supplied with AC voltage is contacted by an insulating member in the form of a mesh of insulating filaments or an imperforate dielectric insulating member or filaments wound aro... | 02/19/2002 |
| 6340851 | Modular transformer arrangement for use with multi-level power converter A modular transformer arrangement providing power to a multi-level power converter includes a plurality of three phase transformers having delta or extended delta connected primary windings and delta or extended delta or wye or zig zag wye connected secon... | 01/22/2002 |
| 6320731 | Fault tolerant motor drive arrangement with independent phase connections and monitoring system In the embodiment described in the specification, a fault tolerant motor drive circuit arrangement includes a motor having three stator windings which are electrically isolated and are supplied by separate single phase drive circuits, each having a differ... | 11/20/2001 |
| 6311521 | Process for producing flame reaction members for burners A raw material mixture, which has a glass composition containing a salt or an oxide of a flame reaction metal, is heated, and an intermediate base material, in which the salt of the flame reaction metal, or the like, has been thermally decomposed and whic... | 11/06/2001 |
| 6312383 | Dual band ultrasonic systems A dual-frequency band ultrasonic apparatus provides a first ultrasound signal to a region at a first frequency band and a second ultrasound signal at a second frequency band for monitoring the region. A processor controls the first and second ultrasound s... | 11/06/2001 |
| 6311033 | Electrophotographic exposure and development arrangement In the embodiment disclosed in the specification, an electrophotographic exposure and development arrangement has a flexible transparent photoreceptor belt driven between two support rollers and along four printing stations at each of which the photosensi... | 10/30/2001 |
| 6302516 | Ink supply system for ink jet printhead An ink supply system for an ink jet printhead having an orifice plate with orifices includes an ink reservoir connected through a valve and a luer connection to an ink supply container and an air pump arranged to produce a vacuum in the ink reservoir to d... | 10/16/2001 |
| 6298211 | Jump monocomponent development arrangement A jump monocomponent development arrangement includes a dielectric photoreceptor belt having an image-bearing surface on one side and a conductive surface on the other side with a thickness in the range from 30 microns to 50 microns and an electrostatic c... | 10/02/2001 |
| 6284475 | Assays for diagnosis of thrombophilic disease The present invention provides methods for diagnosing and/or monitoring thrombophilic disease in a patient that can result from the antiphospholipid antibody syndrome (aPL syndrome). The methods of the invention are premised on the inhibition of binding o... | 09/04/2001 |
| 6276442 | Combined condenser/heat exchanger A combined steam condenser and liquid-to-liquid heat exchanger has an outer shell forming an enclosure within which a first plurality of tubes are supported at opposite ends by tube sheets to provide a steam condenser. Within the outer shell an inner shel... | 08/21/2001 |
| 6276460 | Residental sprinkler arrangement In the particular embodiment disclosed in the specification, a sprinkler has a sprinkler body with a passage having an orifice providing a K factor of about 3 to 6 which is normally closed by a cap retained in position by a glass bulb thermally responsive... | 08/21/2001 |
| 6227844 | Combustor structure for igniters In a structure of a burning portion of an alcohol-fueled ignitor provided with a wick for drawing up fuel alcohol in a fuel reservoir by capillarity from one end portion thereof to the other end portion and burning the fuel alcohol at the other end portio... | 05/08/2001 |
| 6217315 | Liquid fuel burning device A liquid fuel burning device comprising a wick for sucking and burning a liquid fuel contained in a fuel tank by capillarity and a vent passage which is provided in a portion other than a fuel passage used by the wick and allows communication between an i... | 04/17/2001 |
| 6214886 | Hydroxylation activated prodrugs The present invention concerns enzymatic aromatic hydroxylation-activated prodrugs, particularly anti-tumour prodrugs and those which are specifically activated by the hydroxylation activity of the enzyme CYP1B1.... | 04/10/2001 |
| 6214976 | Chemical method for lignin depolymerization A process for depolymerizing and/or chemically modifying lignin or lignin-like compounds in which a solution of copper and peroxide acts on lignin and/or lignin-like substance at a temperature of less than 100° C., characterized in that the solution is a... | 04/10/2001 |
| 6205309 | AC corona charging arrangement with current--limiting capacitor An AC corona charging arrangement includes a corona generating device connected through a capacitive connection to an AC voltage source and partially surrounded by a conductive shield connected to DC voltage source. In one embodiment the corona generating... | 03/20/2001 |
| 6196832 | combustion wick for liquid fuel combustion appliance A liquid fuel burner has a wick for drawing up by capillarity of a draw-up section liquid fuel composed mainly of alcohol contained in a fuel tank and for burning it at a tip flame-producing section, a wick holder for holding the wick, an igniter for ligh... | 03/06/2001 |
| 6189188 | Memorialization of human cremain in artificial reef An artificial reef is assembled from modular units having mating projections and recesses and incorporating human cremain to provide a memorial for deceased persons in a marine environment. In one embodiment the human cremain is encapsulated in cavities w... | 02/20/2001 |
| 6191801 | Color electrophotographic apparauts having image registration A color electrophotographic apparatus which can achieve full color image reproduction with one-pass developing is disclosed. According to the present invention, a flexible photoconductor is formed as an endless belt driven by a set of rollers. Developers ... | 02/20/2001 |
| 6188860 | Method and arrangement for developing a plurality of electrostatic images on a substrate In the particular embodiment disclosed in the specification, an electrostatic image forming arrangement includes a photoreceptor in the form of a continuous belt which is moved past four development stations each containing a different colored toner which... | 02/13/2001 |
| 6152791 | External electric drive propulsion module arrangement for swath vessels In the embodiments described in the specification, a SWATH vessel has a superstructure supported by strut members from a pair of pontoons and each pontoon has a propulsion module removably attached to the rear end of the pontoon. The propulsion module has... | 11/28/2000 |
| 6150747 | Composite stator and rotor for an electric motor In the embodiments described in the specification, a stator for an electric motor has an outer ring member made of resin material and supported from a frame by stator caps and a flanged inner composite ring member made of resin material which receives a s... | 11/21/2000 |
| 6150743 | Composite motor end housing with a metallic sleeve bearing support An electric motor housing including a metal internal hub and composite material reduces weight, reduces motor vibration transmission, increases mechanical damping, improves corrosion resistance and improves electrical performance.... | 11/21/2000 |
| 6150731 | Integrated high frequency marine power distribution arrangement with transformerless high voltage variable speed drive A marine power distribution arrangement utilizes generators driven at standard or higher than normal speeds and/or having a number of poles to produce electric power at a standard 50/60 Hz frequency or substantially higher than the standard 50/60 Hz frequ... | 11/21/2000 |
| 6142090 | Power converter arrangement for integration into a ship structure In the embodiments described in the specification, a power converter unit contains a series of enclosures mounted on a platform which is supported from a ship's hull structure by isolation mounts. Each enclosure includes power conversion modules and is su... | 11/07/2000 |
| 6140635 | Inclination detecting optical sensor and a process for producing the same It is an object of the present invention to provide an optical sensor that has a simple structure and which yet enables positive detection of the inclination of an object of interest, and also to provide a process for producing the same. The improved sens... | 10/31/2000 |
| 6141228 | Parallel resonant DC linked inverter arrangement and method utilizing antiferroelectric dielectric material In the parallel resonant DC link inverter described in the specification, a DC voltage is applied to a plurality of semiconductor switches to provide an AC driving voltage for an AC motor by way of an LC tank circuit containing a nonlinear capacitance dev... | 10/31/2000 |
| 6131648 | High pressure corrugated plate-type heat exchanger A high pressure corrugated plate-type heat exchanger includes a plate pack consisting of stacked corrugated plates having seals between adjacent plates contained in a high pressure enclosure. The seals act as the primary arrangement for containing the hig... | 10/17/2000 |
| 6125528 | Method for making a composite electric motor housing An electric motor housing is made by press-forming a composite material on a metal cylinder and machining passages in the press-formed material. This reduces weight, reduces motor vibration transmission, increases mechanical damping, improves corrosion re... | 10/03/2000 |
| 6123887 | Process for preparing regenerated cellulose article A composition containing cellulose formate and a solvent system. At a temperature at least equal to a value Tf the composition is a solution, and at a temperature appreciably less than Tf the composition is an elastic, thermoreversib... | 09/26/2000 |
| 6120566 | Liquid fuel for combustion appliances and combustion appliance using the same A liquid fuel for combustion appliances, in which a combustion wick for sucking up the fuel by the utilization of capillarity is used, contains an alcohol as a principal constituent and contains a hydrocarbon compound, which has approximately the same boi... | 09/19/2000 |
| 6118932 | Method and arrangement for a high voltage single-stage variable speed drive A high voltage, single-stage variable speed motor power supply utilizes direct AC-to-AC converters that do not have any intermediate DC link, along with a multi-level, multi-phase, multi-circuit variable speed motor drive and a motor in which a stator is ... | 09/12/2000 |
| 6115053 | Computer animation method and system for synthesizing human-like gestures and actions A computer animation method for creating computer generated animated characters which realistically perform human-like actions. Actions of an animated character are produced as a combination of motions of a plurality of joints. A number of gesture actions... | 09/05/2000 |
| 6106280 | Structure for preventing detachment of lighter nozzle cap A structure is provided for preventing detachment of a lighter nozzle cap in a lighter having a main lighter body, a burner located on top of the main lighter body for burning fuel to produce a flame, an operation member located on top of the main lighter... | 08/22/2000 |
