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Attorney: Thomson; Alan A.


Number of patents: 96
Last date: January 04, 1994

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NumberTitleIssue Date
5276110Highly regular multi-arm star polymers
A carbosilane-based hybrid star polymer having a carbosilane core of large size and addition polymer chains emanating from the core, is described. The carbosilane core is formed from a central silane nucleus and built up by repeated alternating hydrosilyl...
01/04/1994
5105088Constant sensitivity superheated droplet radiation detector/dosimeter
Radiation detectors and dosimeters having superheated droplets of detector liquid as the radiation-sensitive component have been found to have significant variation in sensitivity with changes in operating temperature. In order to provide a more constant ...
04/14/1992
5070081Inclusion complexes of cyclodextrins by agglomeration
A combined process is described in which inclusion complexes are formed from guest molecules and cyclodextrins during agglomeration of the cyclodextrins. Sufficient agitation in the presence of a small amount of water results in complex formation and bond...
12/03/1991
5035910Separation of oilseed components in solvent phase
Oilseed, particularly whole canola seed, is separated under non-oxidizing conditions, in a non-aqueous solvent system, into high quality oil and proteinaceous flour food components, and a seed coat meal (hull) byproduct. Maceration in a solvent, sequentia...
07/30/1991
5010005Bio-oxidation of high alcohols in non-aqueous reaction media
Whole cells of methylotrophic yeasts are able to oxidize benzyl alcohol to benzaldehyde in aqueous reaction media. However, the low water solubility of the reactant and product of this bioconversion, combined with the ability of both to strongly inhibit t...
04/23/1991
5002784Microwave-assisted natural products extraction
The extraction of natural products from material of biological origin is enhanced and accelerated by concurrent contact with extractant medium and exposure to microwave radiation. Normally the extractant medium is selected to be transparent to the microwa...
03/26/1991
4973554Affinity process for trypsin purification and stabilization
A water soluble ligand bound polymer has been synthesized and used for purification and stabilization of trypsin, an easily autodigestible enzyme. The affinity polymer was formed by copolymerizing N-acryloyl-m-amino-benzamidine, and acrylamide in the abse...
11/27/1990
4973783Dehalogenation of halogenated aromatic compounds
Various halogenated aromatic compounds, particularly polychlorinated biphls, and the like, are dehalogenated by reaction with alkali metal in the presence of liquid hydrosiloxane. A selected solvent or diluent may be present. The alkali metal halide reac...
11/27/1990
4929553Protease for specific processing of secreted proteins
This invention is concerned with the specific processing of secreted proteins in genetically modified yeast cells. The yeast KEX1 gene was cloned and the KEX1 product was shown to be a serine protease, evidently a carboxypeptidase B-like protease. A proba...
05/29/1990
4913730Recovery of gold from aqueous solutions
Gold is recovered from aqueous solutions which include a solubilizing reagent by contacting the solution with hydrogen under selected conditions until the gold precipitates, and removing the precipitate from the solution. The reagent comprises a thiourea ...
04/03/1990
4902507Toxic strains of the bacterium Bacillus thuringiensis for control of the bertha armyworm Mamestra configurata
An insecticidal composition for controlling or inhibiting the growth of larvae of the Bertha armyworm, comprising an insecticidal substance of one or more strains of Bacillus thuringiensis and an insecticidally acceptable carrier. The strains belong to th...
02/20/1990
4902344Ferric chloride leach of a metal-sulphide bearing material
The present invention relates to an aqueous ferric chloride leach process for the extraction of metal values from a metal-sulphide bearing material, the leach being carried out in the presence of a leaching aid chosen from among salts of diesters of sulph...
02/20/1990
4888108Separation of fine solids from petroleum oils and the like
Dispersed solids, particularly fine peptized hydrophobic solids, present in some petroleum oils, bitumen solutions or concentrates, heavy oils and the like, may be removed by distributing an additive selected from resorcinol, catechol, formic acid, maleic...
12/19/1989
4871669Production of natural flavor aldehydes from natural source primary alcohols C2 -C7
Methylotrophic yeasts of the genera Pichia, Torulopsis, Candida and Hansenula when grown on methanol, make use of an enzyme, alcohol oxidase, to catalyse the initial oxidation of methanol to formaldehyde. Non-growing whole cells of such methylotrophic yea...
10/03/1989
4870014Cloning of thermolabile glucoamylase gene into saccharomyces cerevisiae
This inverntion concerns a glycoamylase gene cloned into the yeast Saccharomyces cerevisiae, method for cloning such a gene into such yeasts and cloning vehicles containing such a gene, suitable for use in Saccharomyces cerevisiae. Yeast containing a gluc...
09/26/1989
4851484Anhydride-based fortifiers for anhydride-cured epoxy resins
An anhydride-cured epoxy resin (epoxy resin+anhydride curing agent+catalyst) may be fortified (i.e. increased in strength and modulus without being made brittle) by the addition of a carboxylic acid and the reaction product of a carboxylic acid anhydride ...
07/25/1989
4837146Forecasting the risk of sclerotinia stem rot in crops
Sclerotinia stem rot, caused by the fungus Sclerotinia sclerotiorum (L ib.) de Bary, is a major disease of rapeseed (canola) in western Canada and many other parts of the world. Significant yield losses result from severe crop infestatons. A method of ste...
06/06/1989
4830965Transposable linkers to transfer genetic information
Transposable linkers are DNA sequences recognized and employed by transposition proteins, including transposases, in the insertion of genetic information into the genetic architecture of an organism and in the movement of genetic information from one loca...
05/16/1989
4831126Antigenic polysaccharide specific to Brucella abortus and Yersinia enterocolitica serotype 0:9
The antigenic O-chain polysaccharides from Brucella abortus and Yersinia enterocolitica serotype 0:9 have similar structure, i.e. 1-2 linked 4,6-dideoxy-4-formamido-଱-D-mannopyranosyl units. The antigen is more readily isolated from the Yersinia and...
05/16/1989
4816533Epoxy fortifiers based on aromatic amines
Epoxy resins have been found to be fortified (increased strength and modulus yet not brittle) by compounding (a) a resin-forming polyepoxide, (b) an amine curing agent for (a), (c) a fortifier for (a)+(b) comprising the reaction product of (i) an aromatic amine hav...
03/28/1989
4808208Phenolic safeners for glyphosate herbicides
Glyphosate herbicides are used for weed control in crops. It has been found that the desired crop plants can be protected from the herbicidal effect by providing a pretreatment so that the crop plants have assimilated a phenolic compound found to give a s...
02/28/1989
4803227Aminoalkyl ethers of phenols as anticancer agents for the breast and colon
The use of (a) N,N-dialkyl-2-[(4-phenylmethyl)phenoxy]ethanamine and N-morpholino-2-[(4-phenylmethyl)phenoxy]ethanamine compounds and their salts, as anticancer agents, is described. These compounds bind significantly to the anti-estrogen binding sites bu...
02/07/1989
4788080Process and apparatus for coating particles with fine powder
There is disclosed a process for coating particles, such as ceramic, metallic and organic cores, with fine powder, such as ceramic, metal, organic or carbon powder. The process comprises providing a mixture comprising the particles and a binder which is c...
11/29/1988
4779000Detector/dosimeter for gamma and microwave radiation
A direct reading, self-powered detector and dosimeter for gamma rays, and other low LET radiation, and optionally microwaves, is described. A transparent elastic solid medium contains uniformly dispersed droplets of a very high vapor pressure detector liq...
10/18/1988
4775483Method to reduce plasma cholesterol
Cholesterol in liquids such as blood plasma can be reduced by passing such liquids over an insoluble matrix such as agarose or treated glass beads to which is attached a C-reactive protein capable of binding cholesterol. An eluent such as sodium chloride ...
10/04/1988
4755459Detection of gonococcal infections using monoclonal antibodies
Monoclonal antibodies specific to Neisseria gonorrhoeae lipopolysaccharide components having no cross-reactivity with N. meningitidis have been produced and found useful in the diagnosis of the presence of N. gonorrhoeae....
07/05/1988
4738795Demulsification of water-in-oil emulsions
Crude petroleum water-in-oil emulsions such as those produced by steam injection or water flooding in secondary oil well treatments (and other emulsions of this type) can be very effectively broken by the addition of water-insoluble, polar compounds selec...
04/19/1988
4739028Epoxy fortifiers based on aromatic polyhydroxyl compounds
Epoxy resins have been found to be fortified (increased in strength and modulus yet not made brittle) by compounding: (a) a resin-forming polyepoxide (b) an amine curing agent for (a) and (c) a fortifier for (a)+(b) comprising the reaction product of (i) an aromati...
04/19/1988
4727136Modified meningococcal group B polysaccharide for conjugate vaccine
The group B polysaccharide of Neisseria meningitidis is chemically modified to enhance the immune response thereto, thereby providing cross-reactive antibodies of high affinity. The N-acetyl group of the sialic acid residues of the polysaccharide has been...
02/23/1988
4720287Low temperature thermal-chemical pretreatment process for peat dewatering
This invention concerns dewatering peat by heating it and subjecting it to a surface active agent, preferably a cationic polymeric surface active agent and subsequently pressing the product to yield a peat product with lowered moisture content....
01/19/1988
4720457Selective production of ethyl acetate and acetaldehyde by microorganisms
This invention is concerned with the selective production of ethyl acetate and acetaldehyde by microorganisms, for example of the genus Candida and of the genus Hansenula. Ethyl acetate or acetaldehyde may be produced by altering the concentration of etha...
01/19/1988
4719008Solvent extraction spherical agglomeration of oil sands
Oil sands and similar hydrocarbon-solids mixtures are separated into their components by steps comprising: mixing with a solvent for the hydrocarbon in an extraction-contacting stage including a controlled light milling action, in the presence of hydrophi...
01/12/1988
4701306Concentrator for detection of amine vapors
A method, and air sampler concentrator, for sampling and detecting trace quantities of amine vapors in ambient atmospheres, are described. Atmospheres containing vapors of amines, particularly aralkyl amines such as amphetamines, are sampled and vapors co...
10/20/1987
4654145Direct recovery of precious metals by solvent extraction and selective removal
The direct recovery of precious metals, particularly gold and the platinum group metals, from chloride solutions, is achieved by solvent extraction and selective stripping/precipitation. Substituted quinolines are used as active extractant, in particular ...
03/31/1987
4649336Automatic, self sustaining probe for measuring the work function
An apparatus for measuring changes in the work function of a surface using a method devised by Kelvin and known as the "dynamic capacitor method". This apparatus comprises a system for monitoring and automatically regulating the vibration of a Kelvin prob...
03/10/1987
4613758Direct reading detector/dosimeter for neutrons and other high LET radiation
A direct reading detector/dosimeter for neutrons and other high LET radiation is described, comprising a selected, substantially transparent, elastic solid medium uniformly impregnated with droplets of an immiscible detector liquid. The detector liquid-in...
09/23/1986
4610876Attractants for fall cankerworm moths
Two new compounds which are attractive to male fall cankerworm moths, Alsophila pometaria, in the field, are described. They are (Z,Z,Z,E)-3,6,9,11-nonadecatetraene and (Z,Z,Z,Z)-3,6,9,11-nonadecatetraene. These compounds, separately and together, an...
09/09/1986
4599436Forms of aurothiomalate having therapeutic advantage
Sodium aurothiomalate used as a therapeutic agent or as a component in a therapeutic agent is shown to be a mixture of substances, one of which is non-toxic to blood platelets, shows specific spectral absorption visibility and does not demonstrate the usu...
07/08/1986
4598137Polyarylene polyethersulfone ionomers
An aromatic ionomeric copolymer having arylether and arylsulfone linkages has been prepared by condensation of both: (a) The alkali metal bisphenate salts of 9,9-bis(4-hydroxyphenyl-fluoren-4-carboxylic acid, optionally with up to 99 mol percent of anothe...
07/01/1986
4575458Multicomponent attractant for armyworm moths
Moths of the armyworm Pseudaletia unipuncta have been found to be attracted strongly to mixtures of three or four chemical compounds. The mixtures found to be the most powerful and specific attractants are those comprising: (a) (Z)-11-hexadecenyl acetate ...
03/11/1986
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