U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.

Newsletter  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.

 

Class 435/135 - Carboxylic acid ester


Subclass of Class 435 - Chemistry: molecular biology and microbiology
Definition: Processes wherein the product synthesized contains an ester
No. of patents: 641
Last issue date: 05/15/2012


          9            
NumberTitleIssue Date
6156852Hydroxy-terminated polyhydroxyalkanoates
Hydroxyterminated PHA is produced by cultivating a PHA-producing microorganism in the presence of an aliphatic diol or an aliphatic polyol. High molecular weight hydroxy-terminated PHA is obtainable by the disclosed process, and is useful in the productio...
12/05/2000
6146665Entrapment or microencapsulation of drugs in a polyhydroxyalkanoate formed by enzyme synthesis
A hydrophilic or lipophilic drug is entrapped or microencapsulated in a polyhydroxyalkanoate homopolymer or copolymer. The homopolymer or copolymer is synthesized in an aqueous medium containing a dissolved hydrophilic drug by in vitro enzyme polymerizati...
11/14/2000
6146861Processes for the production of amidase
An amidase or nitrilase is made by continuous culture under carbon limitation using a carbon source which includes, respectively, either (a) an amide or amide precursor or (b) a nitrile or nitrile precursor. Novel enzymes have particular stability. A nove...
11/14/2000
6143532Process for recovering carboxylic acids from a fermentation broth
Carboxylic acids are recovered from a fermentation broth by adjusting the pH of a fermentation broth comprised of a carboxylic acid to at least about 6.0 and then heating the pH-adjusted broth to a temperature sufficient to effect the formation of three i...
11/07/2000
6136575Enzymatic process for the manufacture of ascorbic acid, 2-keto-L-gulonic acid and esters of 2-keto-L-gulonic acid
The present invention is directed toward efficient, high-yield processes for making ascorbic acid, 2-keto-L-gulonic acid, and esters of 2-keto-L-gulonic acid. The processes comprise reacting the appropriate starting materials with a hydrolase enzyme catal...
10/24/2000
6117658Methods of making polyhydroxyalkanoates comprising 4-hydroxybutyrate monomer units
The PHA biosynthetic pathway is combined with a succinic semialdehyde metabolic pathway that metabolizes succinic semialdehyde via a 4-hydroxybutyryl-CoA intermediate in order to produce high levels of PHA comprising 4HB monomer units. This combination is...
09/12/2000
6117827Biodegradable lubricant base oil and its manufacturing process
A biodegradable lubricant base oil of satisfactory low-temperature fluidity, oxidative stability and lubricity, and having a low cloud point, is disclosed. The lubricant base oil is manufactured by mixing and subjecting the following simultaneously to an ...
09/12/2000
6103956Polyhydroxyalkanoate synthesis in plants
Novel transgenic plants and plant cells are capable of biosynthesis of polyhydroxyalkanoate (PHA). Heterologous enzymes involved in PHA biosynthesis, particularly PHA polymerase, are targeted to the peroxisome of a transgenic plant. Transgenic plant mater...
08/15/2000
6096524Chemically derived maltodextrins
High solids maltodextrin syrups, some of which are useful as the base for remoistenable adhesives, are prepared by a high solids alpha amylase enzyme conversion process. They are characterized by their high solids content (at least 55 wt. %) and light col...
08/01/2000
6090598Enzymatic process for interesterification of fats and oils using distillation
There is disclosed a process for modifying fats and oils by an interesterification reaction to efficiently increase concentrations of the desired triglycerides. In the process, a step for subjecting a fat or oil to an interesterification reaction with a f...
07/18/2000
6091002Polyhydroxyalkanoates of narrow molecular weight distribution prepared in transgenic plants
Methods for the biosynthesis of polyhydroxyalkanoate homopolymers and copolymers are described. In a preferred embodiment, the polymers have a single mode molecular weight distribution, and more preferably have a distribution of between about 2 and about ...
07/18/2000
6083729Methods for isolating polyhydroxyalkanoates from plants
Methods are provided for separating polyhydroxyalkanoates ("PHAs") from plants, such as transgenic oil crop plants. The methods advantageously permit both the oil and the PHAs to be recovered from the plant biomass. To isolate the PHAs, in one embodiment,...
07/04/2000
6080402Immobilization of lipases by entrapment in silica matrices
Lipases are immobilized by entrapment in silicon-containing matrices obtained by hydrolysis of alkoxy-silicon compounds in the presence of a catalyst and additives such as proteins, polyhydroxy compounds, insoluble organic polymers and/or insoluble inorga...
06/27/2000
6080562HV/HB copolymer production
Microorganisms are modified to permit production of HV/HB copolymers from substrates such as glucose by inducing amiono acid overproduction in those capable of synthesising and polymerising hydroxybutyrate or adding to an amino acid overproducer the genet...
06/27/2000
6077696Recombinant production of novel polyketides
Novel polyketides and novel methods of efficiently producing both new and known polyketides, using recombinant technology, are disclosed. In particular, a novel host-vector system is described which is used to produce polyketide synthases which in turn ca...
06/20/2000
6063602Lipopolysaccharide biosurfactant
The invention relates to a new lipopolysaccaride biosurfactant, a strain of Acinetobacter calcoaceticus which produces this biosurfactant, and a process for its preparation. The biosurfactant has a high emulsifying capacity, it promotes the biodegradation...
05/16/2000
6063916Transesterification of insoluble polysaccharides
Bacillus subtilis protease catalyzes the acylation of organic solvent-insoluble polysaccharides in isooctane solution containing vinyl esters of fatty acids as acyl donor. The reaction occurs only when the enzyme is solubilized via ion-pairing with the an...
05/16/2000
6046040Method for producing glycoconjugates
A method for producing glycoconjugate, which comprises the steps of: (i) binding a sugar residue to the side chain of a water-soluble polymer via a linker having a selectively cleavable linkage to give a primer, and bringing said primer into contact with an im...
04/04/2000
6046043Method for the conversion of carbonyl compounds to their ଲ-unsaturated derivatives using molecular oxygen as the oxidant
The present invention provides a general biocatalyst for transforming saturated carbonyl compounds to their ଱,ଲ-unsaturated analogs. The transformation is regio- as well as stereoselective. These catalysts are useful in the chiral resolution o...
04/04/2000
6043063Methods of PHA extraction and recovery using non-halogenated solvents
Polyhydroxyalkanoate (PHA) polyester is extracted from biomass by dissolving the PHA in a non-halogenated solvent which comprises a PHA-good solvent or a mixture thereof. Suitable PHA-good solvents can be selected from the disclosed alcohols, esters, amid...
03/28/2000
6043058Preparation of cyclic depsipeptide compounds and a novel cyclic depsipeptide
Known cyclic depsipeptides which are PE 1022F substance and PF 1022H substance, as well as a novel cyclic depsipeptide, PF 1022G substance, are now prepared simultaneously by cultivating a fungal strain capable of producing PF 1022F substance, PF 1022G su...
03/28/2000
6033882Chiral synthesis of 2-hydroxy carboxylic acids with a dehydrogenase
Inter alia, an enzyme, a 2-hydroxy carboxylic acid dehydrogenase, characterised in that it is obtainable from Lactobacillus delbrueckii ssp. Bulgaricus and in that it catalyses the production of (R)-hydroxy derivatives of 2-keto acids, which are unsubstit...
03/07/2000
6025188Fumonisin detoxification compositions and methods
Methods for identifying organisms capable of degrading fumonisin. Fumonisin can be incorporated into culture medium for selection of organisms resistant to fumonisin and/or capable of growing on fumonisin as a sole carbon source. Using this method, severa...
02/15/2000
6022719Enzymatic process for the manufacture of ascorbic acid, 2-keto-L-gulonic acid and esters of 2-keto-L-gulonic acid
The present invention is directed toward efficient, high-yield processes for making ascorbic acid, 2-keto-L-gulonic acid, and esters of 2-keto-L-gulonic acid. The processes comprise reacting the appropriate starting materials with a hydrolase enzyme catal...
02/08/2000
6022717Use of oxidation promoting chemicals in the oxidation oxidizable galactose type of alcohol configuration containing polymer
Process for the oxidation of the oxidizable galactose type of alcohol in oxidizable galactose type of alcohol configuration containing polymer, such as guar, with galactose oxidase in the presence of oxidation promoting chemicals....
02/08/2000
6005066Aliphatic polyester composition
A polymer composition comprises an aliphatic polyester and at least one compound of the general formula (I): R1a (A)R2b, where A is a polyfunctional hydrocarbon group; R1 is an electron-donating group such as hy...
12/21/1999
6001618Haloacetoacetate reductase, method for producing said enzyme, and method for producing alcohols using said enzyme
A novel enzyme is provided. This enzyme is capable of reducing 4-haloacetoacetic acid esters to produce (S)-4-halo-3-hydroxybutyric acid esters with high optical purity. The enzyme was isolated from a microorganism belonging to the genus Kluyveromyces. Us...
12/14/1999
5994478Hydroxy-terminated polyhydroxyalkanoates
Hydroxyterminated PHA is produced by cultivating a PHA-producing microorganism in the presence of an aliphatic diol or an aliphatic polyol. High molecular weight hydroxy-terminated PHA is obtainable by the disclosed process, and is useful in the productio...
11/30/1999
5994105Epimerase
A novel polypeptide, acylglucosamine 2-epimerase as shown in FIG. 1 and derivatives thereof, DNA coding for said enzyme, a recombinant vector containing said enzyme, a transformant integrated thereinto said vector, a method for producing said enzyme and a...
11/30/1999
5986095Enantioselective preparation of halophenyl alcohols and acylates
A process is described for preparing a compound of the formula or the S-enantiomer thereof, wherein: R is alkyl, aryl, cycloalkyl, aralkyl, or cycloalkylalkyl, R1 is halogen; R2 is halogen, alkyl, cycloalkyl, aryl or ##STR1## wherein...
11/16/1999
5981240Enzyme-catalyzed synthesis of macromolecules in organic solvents
A method is described for a simple, fast and efficient synthesis of homopolymers and copolymers by the enzymatic ring opening polymerization of lactones and lactides. The enzyme used is an ion paired protease. The advantage of this enzymatic system is in ...
11/09/1999
5976875Diacylglycerol kinase isoforms epsilon and zeta and methods of use thereof
Two novel diacylglycerol kinase (DGK) isoforms are disclosed. The cDNA of one DGK isoform, designated DGK&3xb5;, is about 2.6 kb in length. The DGK&3xb5; cDNA has an open reading frame encoding 567 amino acids and has a predicted molecular mass of 63 kDA....
11/02/1999
5968792Calcium activation of lipase enzyme in process of pressure splitting glycerides
A process for pressure splitting glycerides into fatty acids and glycerols involving the steps of: (a) providing a glyceride feedstock; (b) providing a hydrolytic lipase enzyme; (c) providing an alkaline earth metal selected from the group consisting of c...
10/19/1999
5968805Polyester synthase and a gene coding for the same
The present invention relates to a polypeptide comprising the amino acid sequence of SEQ ID NO:1 or a sequence of SEQ ID NO:1 where in, one or more amino acids are deleted, replaced or added, and the polypeptide having polyester synthase activity. A polye...
10/19/1999
5962724High enantio-selective process for producing pure enantiomeric cyclopentane and cyclopentene-(ଲ)-amino acids
The present invention relates to a highly enantioselective process for the preparation of enantiomerically pure cyclopentane- and -pentene ଲ-amino acids of the general formula (I) ##STR1## in which A and L, A and D or E and L, D and E, R2
10/05/1999
5958743Stereospecific bioconversion of benzyl acetoacetate to benzyl-(s)-(+)-hydroxybutyrate
A bioconversion process where benzyl acetoacetate is converted to benzyl-(S)-(+)-3-hydroxybutyrate....
09/28/1999
5952460Process of recovering polymers of hydroxyalkanoic acids
A process of recovering PHA from a suspension which comprises particles of PHA in a liquid which comprises maintaining the suspension at a temperature at which the PHA melts and substantial coalescence of PHA particles occurs thereby at least partly formi...
09/14/1999
5945318Refining oil compositions
This invention relates to a process for treating an oil composition containing saturated and unsaturated fatty acids in the form of triglycerides, with at least some of the unsaturated fatty acids being polyunsaturated, in order to obtain a refined produc...
08/31/1999
5945316Lactic-acid-containing cyclic depsipeptides having 18 ring atoms as endoparasiticidal agents, and process for their preparation
The present invention relates to a process for the preparation of lactic-acid-containing, optically active, cyclic depsipeptides having 18 ring atoms with the aid of fungal strains of the species Fusarium or enzymatic preparations isolated therefrom....
08/31/1999
5935828Enzymatic production of monoglycerides containing omega-3 unsaturated fatty acids
An enzymatic process for preparing an oil based product significantly enriched in omega-3 fatty acids is disclosed. The process is a two-step procedure involving lipase-catalyzed transesterification of triglycerides followed by low-temperature crystalliza...
08/10/1999
          9            
 
Sign InRegister
Username  
Password   
forgot password?