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Marx, Irene


Primary examiner statistics: 839 patents; average approval time: 838 days
Assistant examiner statistics: 92 patents; average approval time: 1344 days

Patents as Assistant Examiner


1      
NumberTitleIssue Date
5120655Riboflavin producing strains of microorganisms
Strains of yeast of the species Candida famata are disclosed which can produce 10 grams of riboflavin per liter in 6 days, and in particular, strains identified by ATCC Accession Nos. 20849 and 20850. Riboflavin yields of more than 20 grams per liter in 2...
06/09/1992
5112750Immobilized cells and culture method utilizing the same
Novel immobilized cells are prepared by immobilizing microbial cells in a gel carrier wherein an absorbent for organic solvents harmful to the cells is dispersed. A method for normally culturing these immobilized cells is utilized in a medium that contain...
05/12/1992
5109133Antibiotic trienomycins and their production
Novel compounds of the formula ##STR1## wherein R is hexahydrobenzoyl, isovaleryl or 2-methylbutyryl, and pharmaceutically acceptable salts thereof. The novel compounds designated as Trienomycins A, B and C are produced by culturing a microorganism ...
04/28/1992
5106994Agents and method of production thereof
This invention relates to new agents designated LL-F28249଱, LL-F28249ଲ, LL-F28249γ, LL-F28249δ, LLF28249&3xb5;, LL-F28249.zeta., LL-F28249η, LL-F28249θ, LL-F28249.iota., LL-F28249.kappa., LL-F28249λ, LL-F28249μ, LL-F28249.nu., and L...
04/21/1992
5104800One-step cephalosporin C amidase enzyme
A process for the one-step conversion of cephalosporin C and derivatives thereof to the corresponding 7-aminocephalosporanic acid and derivatives comprising treating said cephalosporin C and derivatives with a cephalosporin C amidase enzyme of a recited s...
04/14/1992
5102793Stereospecific keto reduction of bicyclooctandione-carboxylic acid esters by microorganisms
A microbiological process for sterospecific monoketo reduction of racemic 3-keto-bicyclic carbacyclin intermediates to the corresponding optically active 30଱ hydroxy compounds is provided....
04/07/1992
5098835Process for producing L-threonine by fermentation
Microorganisms belonging to the genus Providencia the species rettgeri at least leucine for the growth thereof, produce L-threonine by fermentation in higher yield and with increased amount of L-threonine accumulated....
03/24/1992
5093243Process for the separation and recovery of nosiheptide
Nosiheptide is recovered from a cultivation mixture obtained by cultivating a Nosiheptide-producing strain of Streptomyces by adding a water-miscible organic solvent, removing mycelia, precipitating Nosiheptide by adding water, which may be acidified, and...
03/03/1992
5093250Process for producing optically active bicyclo[3.3.0]octanedione carboxylic acid esters
Claimed is a process for the production of optically active bicyclo[3.3.0]octanedione-carboxylic acid esters of Formula I ##STR1## wherein R1 and R2 jointly represent an oxygen atom, or R1 and R2 individually re...
03/03/1992
5093248BU-3862T antitumor antibiotic
A new antitumor antibiotic designated herein as BU-3862T is produced by fermentation of Streptomyces hygroscopicus ATCC 53709. BU-3862T and its diacetyl and dihydro derivatives inhibit the growth of tumors in experimental animals....
03/03/1992
5087566Process for producing L-threonine
Disclosed is a process for producicng L-threonine, which comprises culturing in a medium a microorganism belonging to the genus Escherichia and having a resistance to cysteine or cystine, or their analogue and an ability to produce L-threonine until L-thr...
02/11/1992
5079162Reticulated cellulose and methods and microorganisms for the production thereof
A method and media for producing bacterial cellulose under agitated culture conditions resulting in sustained production over an average of 70 hours of at least 0.1 g/liter per hour are achieved. A unique reticulated cellulose product is produced using th...
01/07/1992
5077207Process for the production of L-threonine by fermentation
A process for the production of L-threonine, comprising cultivating a mutant bacterial species belonging to the genus Brevibacterium from which dihydrodipicolinate synthase has been deleted or removed in a liquid medium; accumulating the L-threonine as a ...
12/31/1991
5077202Process for producing a glycolipid having a high eicosapentaenoic acid content
A process for producing a glycolipid having a high eicosapentaenoic acid (EPA) content is provided, which process comprises fractionating the whole lipids of marine chlorella by means of a combination of solvent-fractionation with column chromatography, w...
12/31/1991
5075307Paraherquamide and dihydroparaherquamide as antihelminthic agents
Paraherquamide and dihydroparaherquamide, known compounds, are disclosed as having antiparasitic activity. The compounds are fungal metabolites isolated from the known fungus Penicillium paraherquei, and from a newly isolated strain of Penicillium charles...
12/24/1991
5073369Efomycins as performance promoters in animals
The present invention relates to the use of microbiologically prepared compounds and their mixtures, which are called efomycins, as performance promoters in farm animals and processes for their preparation, and furthermore new efomycins and their mixtures...
12/17/1991
5071976Novel heteropolysaccharide
This invention provides a fermentation process which involves aerobically cultivating a strain of Methylophilus viscogenes under growth conditions to produce an accumulated quantity of a novel type of exopolysaccharide, such as heteropolysaccharide Poly 5...
12/10/1991
5071751Process for preparing hyaluronic acid
A process for producing a hyaluronic acid can be provided steadly, with a greatly improved productivity and at an inexpensive cost by incubating a hyaluronic acid-producing microbe in a culture medium formed by adding a blood serum or a bacteriolytic enzy...
12/10/1991
5068187Process for producing D-଱-amino acids
The 5-substituted hydantoins represented below can be transformed into D-଱-amino acids by the use of the cultured broth, cells or treated cells of the genus Hansenula: 5-substituted hydantoins: ##STR1## wherein R represents an alkyl, substitute...
11/26/1991
5059532Microorganism belonging to genus Rhodococcus, and a process for producing alkene derivative and unsaturated fatty acid
Disclosed herein is a process for producing an unsaturated fatty acid or derivative thereof which comprises culturing an unsaturated fatty acid-producing microorganism belonging to the genus Rhodococcus in a medium containing a saturated fatty acid or a d...
10/22/1991
5049495Fermentation method for producing polyether antibiotics
High titers of polyether antibiotics are obtained in a fermentation broth by inoculating a nutrient fermentation broth with a microorganism capable of producing a polyether antibiotic. Growth of the microorganism is established in the broth by incubating ...
09/17/1991
5047339Recovery of polyether antibiotic material
An aqueous medium having dispersed therein hydrophobic, polyether antibiotic-containing droplets, is mixed to cause the droplets to collide with each other and coalesce to form agglomerates which are separable from the medium....
09/10/1991
5047338Polyester Antibiotic preparation
A polyether and antibiotic material is prepared by forming discrete polyether antibiotic-containing agglomerates which are separable from an aqueous medium, by producing a polyether antibiotic through cultivation of a polyether antibiotic-producing microo...
09/10/1991
5041375Method of producing carnitine
This invention relates to a method for producing carnitine comprising contacting, in a reaction medium, carnitinenitrile with (A) a nitrilase capable of hydrolyzing carnitinenitrile to form carnitine or (B) a microorganism containing said nitrilase....
08/20/1991
5041374Polyether antibiotic recovery and purification
Polyether antibiotic material is liberated from agglomerates containing a lipid material and the polyether antibiotic material by separating the polyether antibiotic from the lipid through formation of an acid salt of the lipid and a desired acid salt of ...
08/20/1991
5036004Process for producing L-serine
A process for producing L-serine by the combination of chemical synthesis and enzyme chemical synthesis is disclosed. In this process L-serine is biochemically produced from 2-oxo-axazolidine-4-carboxylic acid or a salt thereof....
07/30/1991
5034321Method for the production of lipids containing bis-homo-γ-linolenic acid
Method for the production of lipds containing bis-homo-γ-linolenic acid and/or arachidonic acid using microorganisms belonging to a genus Conidiobolus and capable of producing the lipids. The microorganisms are cultured on a medium containing an unsatura...
07/23/1991
5034319Process for producing L-arginine
Disclosed is a process for producing L-arginine, which comprises culturing in a medium a coryneform glutamic acid-producing bacterium having resistance to cysteine or a cysteine analogue and an ability to produce L-arginine, accumulating L-arginine in the...
07/23/1991
5028537Novel antifungal substances and process for their production
There is disclosed a series of macrolides isolated from the fermentation broth of a microorganism identified as MA-5000 which morphological analysis reveals to be a strain of Streptomyces hygroscopicus. The compounds' structures are present based upon ana...
07/02/1991
5023184Antibiotics from myxococcus
The invention relates to novel polycyclic alkaloids of formula ##STR1## in which R1 represents hydrogen or hydroxy, R2 represents hydrogen or acyl and A and B, independently of one another, each represents C.dbd.O or C--OH, and ...
06/11/1991
5023175Novel production process of hyaluronic acid and bacterium strain therefor
Hyaluronic acid can be produced efficiently and economically by culturing a strain belonging to a Streptococcus, which has hyaluronic acid producing ability, is hyaluronidase-nonproductive and shows anhemolytic property, and then collecting the hyaluronic...
06/11/1991
5021343Method for producing trichothecenes
Addition of L-leucine ot the fermentation medium of Fusarium mutant NRRL 18365 increases the production of the trichothecenes neosolaniol, 8-propionyl-neosolaniol, and 8-isobutyryl-neosolaniol. These materials are useful as toxins for the production of or...
06/04/1991
5019503Method for production of l-threonine
A method for producting L-threonine is described, comprising subjecting L- or DL-homoserine to enzymatic reaction in an aqueous medium in the presence of cells of biotin-requiring microorganisms belonging to the genus Brevibacterium and harvesting L-threo...
05/28/1991
5017483Process for producing L-threonine
A process is disclosed for producing L-threonine, the process involves culturing in a medium a microorganism of the genus Escherichia capable of producing L-threonine which has resistance to at least one of rifampicin, lysine, methionine, aspartic acid an...
05/21/1991
5017484Process for preparing 3-chloro-1,2-propanediol
A process for preparing an optically active 3-chloro-1, 2-propanediol by employing microorganism which can selectively metabolize (R)- or (S)-3-chloro-1,2-propanediol. The decomposition rate of the substrate can be accelerated and the substrate concentrat...
05/21/1991
5015579Production of (-)trans-2,3-epoxysuccinic acid by fermentation
A method for producing (-)trans-2, 3-epoxysuccinic acid, which can be used as a good starting material for the sythesis of optically active compounds such as optically specific single ଲ-lactam antibiotics, characterized in that filamentous fungi cap...
05/14/1991
5013656Process for producing orotic acid by fermentation
A process is disclosed for producing orotic acid, the process involves culturing in a medium a microorganism of the genus Corynebacterium which is capable of producing orotic acid and has resistance to a pyrimidine analogue or to both a pyrimidine analogu...
05/07/1991
5008188Process for producing S-adenosyl-L-homocysteine
Process for producing S-adenosyl-L-homocysteine, which comprises reacting adenosine with homocysteine by contacting them in an aqueous medium in the presence of cells or treated cells of a microorganism of a specified genus having the ability to synthesiz...
04/16/1991
5008187Antifungal fermentation product
A new antifungal agent which exhibits a moderately broad spectrum of activity towards filamentous fungi and also against Cryptococcus species of the yeast fungi, and which has been isolated from a solid stationary fermentation of an unidentified species o...
04/16/1991
5004695Microbiological process for preparing 9଱-hydroxy-4-androstene-3,17-dione
The invention relates to a process for the production of 9଱-hydroxy-4-androstene-3,17-dione from natural sterols of plant or animal origin or from mixtures thereof by the submerged aerobic fermentation of an enzyme-deficient, sterol-de-grading micro...
04/02/1991
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