Patents and Patent Applications from Louisiana State University System


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5352607 Molecular clone of a chitinase gene from vibrio parahemolyticus  
A process for cloning the chitinase gene of Vibrio parahemolyticus is provided, comprising the steps of cleaving the Vibrio parahemolyticus DNA with Sau3A, PSTI or other restriction enzyme, mixing...
5338660 Diagnosis of Fasciola infections by detection of antigens in feces or intestinal content  
A stable antigen useful in the detection of Fasciola hepatica (or liver fluke) infections is disclosed. The antigen may be found in feces, bile, and intestinal contents. Monoclonal antibodies...
5336672 Increasing egg production in poultry  
Egg production in poultry can be increased by the administration of chromium picolinate, preferably as a feed additive. The amounts of chromium picolinate required are low, so this method of...
5334264 Titanium plasma nitriding intensified by thermionic emission source  
The present invention relates to ion nitriding of pure titanium or titanium-containing alloys at low pressure by intensifying the glow discharge.Plasma intensification was produced by thermionic...
5318783 Compositions which show biological activity against herbivorous insects, and process for the production of such compositions  
A composition and method of making same comprising a grass of the family Graminae with the addition of an extract from bermuda grass in an amount effective to render said composition as an...
5308761 Process for acetylating seaweed alginate with pseudomonas syringae subsp. phaseoliocola  
A method of biosynthetically acetylating seaweed alginates by modification with certain Pseudomonas syringae, such as P. syringae subsp. phaseolicola ATCC 19304, is disclosed. Acetylation occurs...
5272094 Isolation of components from biological specimens via matrix solid phase dispersion  
A process is disclosed for the isolation of a compound such as a drug or drug metabolite f ACKNOWLEDGMENT The work leading to this invention was sponsored by the Food and Drug Administration...
5272005 Sheath/core composite materials  
Rayon/nylon and other sheath/core composite fibers or other materials, with good adhesion between sheath and core resulting from an adhesion promoter. The adhesion promoter is difunctional and...
5263073 Scanning systems for high resolution E-beam and X-ray lithography  
Novel methods and apparatus for high resolution electron beam and X-ray lithography. For electron-beam lithography, a novel 1:1 imaging system is disclosed. For X-ray lithography, novel 1:1 imaging...
5262328 Composition for the clarification of sugar-bearing juices and related products  
A non-toxic composition, and method, for the clarification of raw sugar-containing juices, especially sugar cane juice, and related products, for analysis. A composition constituted of A) aluminum...
5256415 Vaccine against bovine respiratory disease (pasteurellosis)  
A vaccine against bovine respiratory disease is provided containing an attenuated strain of Pasteurella haemolytica isolated from an asymptomatic calf. The vaccine effectively triggers an...
5248046 Crayfish grading apparatus  
An apparatus for grading crayfish is provided, comprising a tank having a bottom and sides forming a cavity which will hold water; and a grate assembly having multiple, vertically separated tiers...
5247877 Automatic barbecue grill  
A novel barbecue grill with mechanical linkages which automatically perform the following functions when the user pulls a single handle: (1) the lid opens; (2) the grill surface moves out of the...
5240598 Microbubble generator for the transfer of oxygen to microbial inocula and microbubble generator immobilized cell reactor  
A microbubble generator is disclosed for optimizing the rate and amount of oxygen transfer to microbial inocula or biocatalysts in bioreactor systems. The microbubble generator, and an associated...
5229277 Process for the production of dextran polymers of controlled molecular size and molecular size distributions  
A process for the production of dextran polymers of controlled average number molecular weight sizes, and molecular weight size distributions via the mixed culture fermentation of Leuconostoc...
5211961 Composition, and method, for premilking udder hygiene  
A gel composition for cleaning and sanitizing the teats and udder of an agricultural animal for machine milking. Residual surface water, a source of milk contamination and mastitis, is eliminated...
5211848 Process for the microbial detoxification of toxic streams  
A continuous flow, immobilized cell reactor, and bioprocess, for the detoxification and degradation of volatile toxic organic compounds. The reactor is closed, and provided with biocatalysts...
5200539 Homogeneous bimetallic hydroformylation catalysts, and processes utilizing these catalysts for conducting hydroformylation reactions  
Novel homogeneous bimetallic hydroformylation catalysts, and processes utilizing these catalysts to convert alkenes, particularly alpha olefins, under mild conditions to a product rich in...
5196418 Hemicholinium lipids and use thereof  
Compounds of the present invention are those having the formula: ##STR1## where R is a linear or branched chain of 1 to 22 carbon atoms selected from the group consisting of alkyl, alkenyl or...
5185164 Bait which contain amino acids for catching ictalurid catfish  
A bait for catching Ictalurid catfish, and fish with similar feeding behavior, containing the free amino acids: L-proline, L-alanine, and L-arginine, and mixtures thereof, at concentrations above...
5184508 Method for determining formation pressure  
A method for accurately determining the formation pressure of earth formans. Formation measurements are made with by use of a novel downhole tool which allows drilling mud to enter the tool in such...
5179631 Neural network logic system  
A novel neural network implementation for logic systems has been developed. The neural network can determine whether a particular logic system and knowledge base are self-consistent, which can be a...
5171587 Amino acid modified food for ictalurid catfish and fish with similar feeding behavior  
The snapping and biting response of ictalurid catfish, and fish with similar feeding habits, are released by the use of the free amino acids: L-proline, L-alanine, and L-arginine, and mixtures...
5159569 Formation evaluation from thermal properties  
A method for determining thermal characteristics of a geological formation from observations of temperature relaxation in a formation after a temperature perturbation, such as that resulting from...
5152771 Valve cutter for arterial by-pass surgery  
A valve cutter for arterial bypass surgery is provided and includes a blade assembly for cutting the venous valves, a shaft for guiding the blade assembly through the bypass vein, an expansion...
5149679 Gallium-containing zeolite catalysts  
A catalyst useful in the aromatization of light paraffins and other hydrocarbons conversion reactions, formed by preparing an intimate mechanical mixture of a gallium-containing species, such as...
5148705 Method and apparatus for determining the wettability of an earth formation  
A method and apparatus for determining the wettability of an earth formation wherein a fluid sample from the wall of a borehole penetrating said formation is extracted then reinjected into the wall...
5147379 Insertion instrument for vena cava filter  
An improved insertion instrument for a vena cava filter is provided and iudes a filter retainer attached to the catheter for preventing accidental ejection of the filter and for enabling retraction...
5142471 Method for determining the pressure or stress of a geological formation from acoustic measurement  
A method to determine stress, pore pressure, or other properties of a geological formation by measuring acoustic characteristics of the formation. The acoustic characteristics, which may be one or...
5138877 Method and apparatus for intersecting a blowout well from a relief well  
A method and apparatus for determining the horizontal pressure gradient of n earth formation penetrated by a borehole. This is done by: (a) establishing, through the wall of the borehole and...
5137608 Electrochemical decontamination of soils or slurries  
The electrochemical decontamination of soil or slurries through the use of an inert anode, a nonreactive cathode, and supplying water to the soil near the anode.
5135604 Analysis of radiofrequency discharges in plasma  
Separation of laser optogalvanic signals in plasma into two components: (1) an ionization rate change component, and (2) a photoacoustic mediated component. This separation of components may be...
5123743 Lithography mask inspection  
A method of detecting defects in a lithography mask by exposing a first mask onto a positive resist, and a second, ostensibly identical mask onto a negative resist. Remaining particles of resist...
5120938 Keyboard having convex curved surface  
A lap top keyboard is provided having an outwardly curved center for user mfort and efficiency. The lap support on an underside of the keyboard is recessed, allowing the keyboard to extend downward...
5114863 Immunosorbant assay for α-1-antitrypsin, kit employing said assay, monoclonal antibody to α-1-antitrypsin, and hybridoma for producing said monoclonal antibody  
A double antibody sandwich immunosorbent assay for detecting alpha-1-antitrypsin (α1 AT) comprising the steps of: (1) reacting (a) a first-species-of-animal antibody to α1 AT with (b) a solid s...
5112296 Biofeedback activated orthosis for foot-drop rehabilitation  
A biofeedback activated orthosis for foot-drop rehabilitation is provided including a lifting mechanism, a control circuit, a muscle activity sensing mechanism, and an electrogoniometer. The...
5110805 Method for protecting plants against soil-borne fungi using glyphosate and imazaquin compositions  
A method for protecting crops against soil-borne fungi, which method comprises: treating the soil with a fungicidal effective amount of a composition selected from: (a) an N-phosphonomethyl...
5110363 Composition, and method for the clarification of sugar-bearing juices, and related products  
A non-toxic composition, and method, for the clarification of raw sugar-containing juices, especially sugar cane juice, and related products, for analysis. A composition constituted of A) aluminum...
5103178 Method using a pluraliyt of electrode, including a reference electrode, for recording a spontaneous potential curve in a borehole while drilling  
An apparatus and method for obtaining a spontaneous potential curve, which pparatus is comprised of: (a) an elongated body: (b) a series of vertically spaced electrodes for measuring electrical...
5095745 Method and apparatus for testing subsurface formations  
A method and apparatus for testing subsurface formations, particularly a formation having a permeability less than about 10 millidarcies is disclosed. The test is made by use of a down hole test...
5092972 Field-effect electroosmosis  
Apparatus and process for controlling the rate of electroosmosis due to a first electric potential in an electrically insulating capillary, in which a second electric potential is applied between...
5083615 Aluminum alkyls used to create multiple fractures  
In a gas-generating chemical reaction carried out in a borehole that is largely filled with water, substantial pressure increases can be generated. This pressure can be used to fracture rocks...
5068662 Neural network analog-to-digital converter  
An asynchronous, rapid, neural network analog-to-digital converter. This converter requires only two different resistance values in R2R resistor ladders, and does not require both positive and...
5029260 Keyboard having convex curved surface  
A lap top keyboard is provided having an outwardly curved center for user comfort and efficiency. The lap support on an underside of the keyboard is recessed, allowing the keyboard to extend...
5021088 Biohydrometallurgical processing of ores, and microorganisms therefor  
A process for the separation and recovery from an ore of a metal, or metals, particularly strategic and precious metals, notably gold. A carbon-containing, gold-bearing ore, notably a carbonaceous...
5020790 Powered gait orthosis  
An orthosis for powering the walking movement of a paralyzed wearer, comprises torso members to be firmly connected to the opposite sides of the wearer's torso. A pair of leg braces is connected to...
5006526 Method of treating a vertebrate animal to reduce plasma triglycerides and cholesterol levels and to alleviate and prevent atherosclerosis  
A method for the treatment of conditions associated with atherosclerosis in vertebrate animals, particularly man. A prolactin-inhibiting compound administered to the animal exhibiting the...
4975863 System and process for grain examination  
A particle examination system is provided, including a surface which provs a background such that particles on or suspended above the surface are distinguishable from the background; a video...
4962023 Single incubation immuno sorbent assay method using particle labels to detect test antigen specific antibodies in presence of other antibodies  
An immunoassay method for one-step detection of specific antibodies which includes incubation of a solid phase support or matrix having a spot of the antigen bound thereto with a sample of the...
4956278 Anaplasma marginale antigen, antigen compositions, vaccine and process for the production of said antigen, antigen compositions and vaccine  
Anaplasma marginale antigen, antigen compositions, vaccine and process for the production of said antigen, antigen composition and vaccine are disclosed. The Anaplasma marginale is free of the...