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Attorney: Willian Brinks Olds Hofer Gilson & Lione


Number of patents: 914
Last date: April 02, 1996

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NumberTitleIssue Date
5503735Membrane filtration system with control valves for optimizing flow rates
A liquid purification system is disclosed. In this system water is pumped into a filter cartridge. A reverse osmosis filter membrane in the filter cartridge removes impurities from the water, but not all of the water passes through the membrane. Water pas...
04/02/1996
5405965Processes for preparation of 5-pyrazolemercaptan derivatives and intermediates thereof
The present invention relates to a process for preparation of 5-pyrazolemercaptan derivatives represented by the following general formula (I), which is useful for synthesis of sulfonyl-urea-based herbicides, and an intermediate thereof, ##STR1## ...
04/11/1995
5345967Secondary air control and check valves
A composite check valve and positively closing valve, particularly such a valve for regulating the introduction of secondary air into the exhaust stream of an internal combustion engine at selected times during the operation of the engine. The valve compr...
09/13/1994
5322784Method and materials for introducing DNA into Prevotella ruminicola
A method of introducing expressible heterologous DNA into Prevotella ruminicola is provided. The method involves conjugal transfer of a shuttle vector comprising the heterologous DNA operatively linked to a promoter functional in P. ruminicola. The invent...
06/21/1994
5316610Bonding apparatus
A depression jig, having a depression chip and a holder for holding the depression chip, is provided which depresses against a wiring substrate a semiconductor chip placed on the wiring substrate. The holder has portions defining penetrations vertically r...
05/31/1994
5317416Facsimile apparatus with a page printer having reduced memory capacity requirements
A facsimile apparatus having a page memory includes a memory having a capacity of at least one line data that is printed by a printer. The reception signal of the facsimile apparatus received and compressed is expanded for printing, and written into the m...
05/31/1994
5314848Method for manufacturing a semiconductor device using a heat treatment according to a temperature profile that prevents grain or particle precipitation during reflow
Described is a method for manufacturing semiconductor devices which includes a heat treating process for heating and cooling semiconductor substrates mounted on a boat at a predetermined pitch according to a predetermined temperature profile, in order to ...
05/24/1994
5314385System for cooling a starting clutch of a continuously variable transmission
A clutch cooling system for cooling a clutch used in combination with a continuously variable transmission including a pressure controlled spool valve having a housing defining a chamber, a spool movably mounted by a spring within the chamber, and a notch...
05/24/1994
5312776Method of preventing the corrosion of metallic wirings
According to the method of preventing the corrosion of metallic wirings of the present invention, aluminium alloy wirings are formed on the surface of a substrate with the use of photoresists, and the photoresists are then removed. Thereafter, HMDS (hexam...
05/17/1994
5309641Disposable surgical scalpel with safety guard
A scalpel including an elongated handle having an engaging surface located on the handle, a blade carried by the handle adjacent one end thereof and a guard movably mounted to the handle for sliding movement relative to the handle between a protective pos...
05/10/1994
5307067Folding circuit and analog-to-digital converter
By making a folded waveform of a folding circuit sharp, the number of elements used in an ADC is reduced and less power consumption is achieved. A folding circuit is composed of a plurality of master-comparator latches, a pair of wiring means for master-t...
04/26/1994
5307302Square root operation device
An approximation of square root's reciprocal is indexed by a table information storing means taking high-order positions of a 2-bit normalized operand output from a normalizing circuit as an address. A 0th partial residue as being a normalized operand is ...
04/26/1994
5301873Low fluid indicator for pressurized canister
A low fluid indicator for a fluid injection system of the type having a sealed pressurized canister, and a valve responsive to a control signal to release fluid from the canister includes a counter that maintains a count. A pulse generating circuit increm...
04/12/1994
5299357Disposable surgical scalpel with safety guard
The scalpel includes a handle mounting a scalpel blade at one end and having a slot opening through and between its opposite sides. A guard, including two side members straddling the handle, is mounted for sliding movement between a protective position ov...
04/05/1994
5296719Quantum device and fabrication method thereof
A quantum wire is formed at the top of triangular protrusion of silicon substrate. A quantum wire is isolated from the substrate by silicon oxide layers. A quantum wire is isolated from the substrate by impurity layers of a conduction type different from ...
03/22/1994
5292111Method and apparatus for opening folded printed products having distinct sheet opening and hold-open means
A conveying device having individually controllable grippers conveys the printed products in the conveying direction to a straightening station where the printed products are aligned. Subsequently, for opening, the folded printed products are fed to an op...
03/08/1994
5291450Read circuit of dynamic random access memory
In a dynamic random access memory including a plurality of memory read circuit arrays, a sense amplifier has a circuit wherein a first switch (or a pair of first switches) and a pair of second switches connected in series to the first switch are connected...
03/01/1994
5289291Image reading apparatus
An image reading apparatus having a high-contrast mode of operation for reading character images and a halftone mode of operation for reading halftone images, including an image sensor converting optical image information into electric signals, an optical...
02/22/1994
5287799Recessed cooktop appliance system
A countertop cooking unit provides an upper surface that is level with the countertop and has removable interior parts that are exposed to the residues of cooking operations. A cooktop housing is supported by the countertop and forms a burner box having a...
02/22/1994
5281416Swine dysentery vaccine
Method and composition for vaccination of a pig against swine dysentary caused by T. hyodysenteriae infection characterized by parenteral, preferably intramuscular, administration to the pigs of a live strain or of an oxygen-treated, non-viable strain of ...
01/25/1994
5282059Facsimile apparatus comprising converting means for converting binary image data into multi-value image data
In a facsimile apparatus, image data receiver receives compressed image data transmitted from a transmission apparatus apart from the facsimile apparatus. A first expanding section expands the received image data using a first expanding method, and a seco...
01/25/1994
5280135Outdoor electrical outlet cover
An outdoor weatherproof protective electrical outlet cover adapted to be attached in weatherproof connection to an electrical outlet comprising a base plate adapted to be attached in weatherproof connection with the electrical outlet, the base plate havin...
01/18/1994
5278782Square root operation device
By taking a high-order position in an operand which is normalized in a two bit unit by means of and output from a normalizing circuit as an address, an approximation of square root's reciprocal is indexed by means of a table information storing unit. By m...
01/11/1994
5276481Method and apparatus for optically measuring toner density
An apparatus for optically measuring toner density, having a rotary member which rotates and retains a developer constituted by a toner and a carrier by magnetic force, a transparent detection window which is disposed at a position where the developer ret...
01/04/1994
5274410Camera having a lens barrier which is opened only during photographing
An imaging apparatus of an electronic camera according to the present invention has a lens barrier arranged on an object side of a photographing lens; an imaging device capable of changing electric charge storage time; a lens barrier state-detecting means...
12/28/1993
5273063Folding tray for invalid walkers
A fold-down detachable utility tray for invalid walkers is disclosed, comprising a generally rectangular tray frame in combination with a pair of locking, fold-down arms each having spring clips for securement to the upright members of an invalid walker. ...
12/28/1993
5272504Device for erasing residual charge on photosensitive member
An erasing device for erasing charge remaining on a photosensitive member, comprising: two kinds of light sources which are so provided as to confront the photosensitive member and have different light emitting wavelengths, respectively; and a control dev...
12/21/1993
5272258Monoclonal antibodies to C-reactive protein
The invention comprises monoclonal antibodies reactive with native C-reactive protein (CRP) and modified CRP having the specificities described herein. The invention also comprises the hybridomas used to produce these antibodies. The antibodies may be use...
12/21/1993
5272000Non-woven fibrous product containing natural fibers
A non-woven matrix of glass fibers, synthetic and natural fibers provides a rigid but resilient product having good strength and insulating characteristics. The product may be utilized in a planar configuration or be further formed into complexly curved a...
12/21/1993
5271078Device for coupling and/or decoupling beams of light, with an integrated optical component
A measurement device having a correction grating associated with a gauge and deflects two diffracted partial beams overlappingly, at a very small angle (଱), onto a single coupling grating. From there, two waveguides located closely beside one anothe...
12/14/1993
5270748High-speed eye tracking device and method
An eye tracking device that utilizes light detection devices for determining the visual axis and point of regard of a user. The light detection devices are arranged in such a way, such as embedded in a thin film, so as to be curved around the optical axis...
12/14/1993
5270421Sugar-based polymers
A method of making a novel sugar-based polymer is disclosed. A sugar and an organic acid derivative having at least two carboxylate functionalities are mixed in a substantially non-aqueous organic solvent with a hydrolytic enzyme and, thereafter, the resu...
12/14/1993
5270061Dual composition hard coated gum with improved shelf life
A dual composition hard coated chewing gum is provided which exhibits improved long-term shelf stability under storage conditions involving constant exposure to the moisture contained in the atmosphere. The dual composition hard coated chewing gum is idea...
12/14/1993
5270060Use of tocopherol to stabilize chewing gum rubber
A chewing gum elastomer is stabilized with a specific mixture of tocopherol homologs, thereby eliminating the need for synthetic antioxidants. The mixture of tocopherol homologs falls within the range of 7-20% by weight alpha tocopherol, 45-75% by weight ...
12/14/1993
5269891Method and apparatus for determination of a constituent in a fluid
A method is provided for measuring the concentration of a constituent of a fluid sample, e.g. glucose in a glucose-containing blood sample, by means of an electrode device. Also provided are an electrode device comprising the electrodes used in the method...
12/14/1993
5270246Manufacturing method of semiconductor multi-layer film and semiconductor laser
When an n-type semiconductor layer is formed on a p-type semiconductor layer in a device such as a semiconductor multi-layer film, the n-type semiconductor layer is formed by adding a p-type dopant as well as an n-type dopant simultaneously. In a double h...
12/14/1993
5267677Athletic glove pocket former, shaper and conditioning device
An athletic glove pocket-forming and shaping device has been invented which, in preferred embodiments, comprises a pocket formation bulbous member in a generally pear-shaped configuration, with a first large end for forming a pocket and a second smaller t...
12/07/1993
5267581Pollution abating vapor trap and condenser apparatus
An apparatus for and method abating discharges of chemicals into the environment. The apparatus comprises a retractable top and a shroud to trap and recondense vapors emanating from open-top chemical processing and solvent cleaning tanks. The retractable ...
12/07/1993
5267494Bottle opener
The present disclosure provides an improved bottle opener incorporated on a key having a head and a body. The head has a U-shaped cutout at a downward angle in the range of about 30° to about 60° with fulcrum and lifting edges. The cutout has a width of...
12/07/1993
5268301Method for filtration assaying of isotope-labelled particulate samples
A method for filtration assaying a particulate sample labelled with low-energy radioactive isotopes measurable by scintillation counting. The method aspect of the invention includes the step of providing a sample comprising sample particles labelled with ...
12/07/1993
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