Patents by Inventor Erik Nystrom
Erik Nystrom has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20020042396Abstract: There is provided amino acid derivatives of formula I, 1Type: ApplicationFiled: November 29, 2001Publication date: April 11, 2002Applicant: Astra ABInventors: David Gustafsson, Jan-Erik Nystrom
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Publication number: 20020022612Abstract: There is provided compounds of formula I, 1Type: ApplicationFiled: April 30, 2001Publication date: February 21, 2002Applicant: AstraZeneca ABInventors: Olle Karlsson, Marcel Linschoten, Jan-Erik Nystrom
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Publication number: 20020019371Abstract: There is provided compounds of formula I, 1Type: ApplicationFiled: April 30, 2001Publication date: February 14, 2002Applicant: AstraZeneca ABInventors: David Gustafsson, Jan-Erik Nystrom
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Patent number: 6337343Abstract: There is provided amino acid derivatives of formula I, wherein p, q, R1, R2, R3, R4, Y, n and B have meanings given in the description which are useful as competitive inhibitors of trypsin-like proteases, such as thrombin, and in particular in the treatment of conditions where inhibition of thrombin is required (e.g. thrombosis) or as anticoagulants.Type: GrantFiled: March 29, 2000Date of Patent: January 8, 2002Assignee: AstraZeneca ABInventors: David Gustafsson, Jan-Erik Nyström
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Patent number: 6337394Abstract: There is provided compounds of formula I, wherein R1, R2, R3, Rx, Y, n and B have meanings given in the description which are useful as competitive inhibitors of trypsin-like proteases, such as thrombin, and in particular in the treatment of conditions where inhibition of thrombin is required (e.g. thrombosis) or as anticoagulants.Type: GrantFiled: December 29, 1998Date of Patent: January 8, 2002Assignee: AstraZeneca ABInventors: Olle Karlsson, Marcel Linschoten, Jan-Erik Nyström
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Publication number: 20010046981Abstract: There is provided compounds of formula I, 1Type: ApplicationFiled: December 29, 1998Publication date: November 29, 2001Inventors: OLLE KARLSSON, MARCEL LINSCHOTEN, JAN-ERIK NYSTROM
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Patent number: 6265397Abstract: There is provided compounds of formula I, wherein R1, Rx, Y, Ry, n and B have meanings given in the description which are useful as competitive inhibitors of trypsin-like proteases, such as thrombin, and in particular in the treatment of conditions where inhibition of thrombin is required (e.g. thrombosis) or as anticoagulants.Type: GrantFiled: June 26, 1998Date of Patent: July 24, 2001Assignee: AstraZeneca ABInventors: Olle Karlsson, Marcel Linschoten, Jan-Erik Nyström
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Patent number: 6262028Abstract: There is provided compounds of formula I, R1O(O)C—CH2—(R)Cgl—Aze—Pab—R I wherein R1 and R2 have meanings given in the description, which are useful as prodrugs of inhibitors of trypsin-like proteases, such as thrombin, and in particular in the treatment of conditions where inhibition of thrombin is required (eg thrombosis) or as anticoagulants.Type: GrantFiled: July 15, 1999Date of Patent: July 17, 2001Assignee: AstraZeneca ABInventors: Thomas Antonsson, David Gustafsson, Kurt-Jürgen Hoffmann, Jan-Erik Nyström, Henrik Sörensen, Mikael Sellén
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Patent number: 6255301Abstract: There is provided compounds of formula I, wherein R1, R2, R3, Rx, Y, n and B have meanings given in the description which are useful as competitive inhibitors of trypsin-like proteases, such as thrombin, and in particular in the treatment of conditions where inhibition of thrombin is required as in thrombosis or as anticoagulants.Type: GrantFiled: July 14, 1997Date of Patent: July 3, 2001Assignee: AstraZeneca ABInventors: David Gustafsson, Jan-Erik Nyström
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Patent number: 6089417Abstract: Chip bin comprising, an upper container part, a discharge opening, and, arranged between the container part and the discharge opening, a discharge zone, preferably without moving parts, the discharge zone having a curvilinear roller shape in any freely chosen horizontal cross-section and the number of corners in the geometrical curvilinear figure of the cross-section is more than two, preferably three, in that the cross-section of the discharge zone decreases from the container part (5) down towards the discharge opening (4), and in at least one section of the discharge zone having a downwardly continuously decreasing curvilinear roller shaped cross-section.Type: GrantFiled: November 17, 1998Date of Patent: July 18, 2000Assignee: Kvaerner Pulping ABInventors: Vidar Martin Snekkenes, Sven-Erik Olsson, Per Johan Erik Nystrom, Kenneth Olof Bellstrom
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Patent number: 6051568Abstract: There is provided amino acid derivative formula I, ##STR1## wherein p, q, R.sup.1, R.sup.2, R.sup.3, R.sup.4, Y, n and B have meanings given in the description which are useful as competitive inhibitors of trypsin-like proteases, such as thrombin, and in particular in the treatment of conditions where inhibition of thrombin is required (e.g. thrombosis) or as anticoagulants.Type: GrantFiled: August 7, 1996Date of Patent: April 18, 2000Assignee: Astra AktiebolagInventors: David Gustafsson, Jan-Erik Nystrom
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Patent number: 5965692Abstract: There is provided compounds of formula I,R.sup.1 O(O)C--CH.sub.2 --(R)Cgl-Aze-Pab-R.sup.2 Iwherein R.sup.1 and R.sup.2 have meanings given in the description, which are useful as prodrugs of inhibitors of trypsin-like proteases, such as thrombin, and in particular in the treatment of conditions where inhibition of thrombin is required (eg thrombosis) or as anticoagulants.Type: GrantFiled: January 31, 1997Date of Patent: October 12, 1999Assignee: Astra ABInventors: David Gustafsson, Jan-Erik Nystrom, Henrik Sorensen, Mikael Sellen
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Patent number: 5942630Abstract: The invention relates to a process for the production of enantiomerically-pure AzeOH which comprises selective crystallisation of a diastereomerically-pure tartrate salt thereof, followed by liberation of the free amino acid, as well as the compounds L-azetidine-2-carboxylic acid-D-tartrate and D-azetidine-2-carboxylic acid-L-tartrate.Type: GrantFiled: September 19, 1996Date of Patent: August 24, 1999Assignee: Astra ABInventors: Philipp Barth, Hugo Fritschi, Jan-Erik Nystrom, Armin Pfenninger
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Patent number: 5930318Abstract: The present invention provides a method and apparatus for fuel handling in a nuclear reactor. The nuclear reactor has a reactor vessel comprising a reactor core with a plurality of fuel assemblies and control rods. A fuel pool is arranged adjacent to the reactor vessel. A group comprising at least a plurality of fuel assemblies is simultaneously lifted out of or into the reactor vessel with a single gripper, the gripper having a plurality of gripping devices. The group is transported between the reactor vessel and the fuel pool by means of the gripper.Type: GrantFiled: April 30, 1997Date of Patent: July 27, 1999Assignee: ABB Atom ABInventors: Bengt Baversten, Karl-Erik Nystrom, Anders Rosengren, Antti Suvanto
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Patent number: 5898746Abstract: The present invention relates to a method and a device for correction of the movements of a suspension device and positioning thereof in a fluid. The suspension device is provided with a first and a second end, and the first end is suspended from a point (S). A correction device is arranged at the second end of the suspension device and adapted to generate a force which provides an acceleration in the fluid so that the position of the second end of the suspension device is corrected.Type: GrantFiled: April 30, 1997Date of Patent: April 27, 1999Assignee: ABB Atom ABInventors: Bengt Baversten, Karl-Erik Nystrom, Anders Rosengren, Antti Suvanto
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Patent number: 5896430Abstract: The present invention is used in fuel handling for lifting of fuel assemblies and/or control rods out of/into a reactor vessel in a nuclear reactor. The reactor vessel comprises a reactor core with a plurality of fuel assemblies and control rods. A fuel pool is arranged adjacent the reactor vessel. A cassette comprising a plurality of storage positions for fuel assemblies and/or control rods is arranged near the reactor core, whereupon fuel assemblies and/or control rods are lifted out of the reactor core and arranged in the cassette. The cassette is then transported to the fuel pool for temporary storage.Type: GrantFiled: April 30, 1997Date of Patent: April 20, 1999Assignee: ABB Atom ABInventors: Bengt Baversten, Karl-Erik Nystrom, Anders Rosengren, Antti Suvanto
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Patent number: 5659071Abstract: A process for the production of guanidino protected .omega.-aminoalkyl guanidines comprising reacting a diamine selectively at one amino group with an alkoxycarbonyl or aralkoxycarbonyl protected electrophilic guanylation reagent. The process of the invention is general and may be performed efficiently in one step yielding a product with high purity and in useful yields. The invention further refers to some compounds that are novel per se and to some novel compounds useful in the process of the invention.Type: GrantFiled: June 28, 1994Date of Patent: August 19, 1997Assignee: Astra AktiebolagInventors: Jan-Erik Nystrom, Hans Fredrik Sjobom
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Patent number: 5525736Abstract: A process for the production of a 5-7 membered ring cyclic sulfonium salt compound, including a 5-7 membered ring cyclic sulfonium salt compound having a non-nucleophilic anion, is described. Members of the latter group are potentially useful as initiators for cationic polymerizations. The process comprises reacting a 1.4-, 1.5-, or 1.6-diol compound or a 5-7 membered ring cyclic ether compound with a mercapto compound and a strong protonic acid yielding the cyclic sulfonium salt compound. Some compounds described are also novel compounds per se.Type: GrantFiled: February 23, 1995Date of Patent: June 11, 1996Assignee: Ciba-Geigy CorporationInventors: Jan-Erik Nystrom, Per Engelhardt, Katarina Beierlein, Mikael Sellen, Bjorn Elman, Jan Vagberg, Martin Nylof
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Patent number: 5498724Abstract: A process for the production of guanidino protected .omega.-aminoalkyl guanidines comprising reacting a diamine selectively at one amino group with an alkoxycarbonyl or aralkoxycarbonyl protected electrophilic guanylation reagent. The process of the invention is general and may be performed efficiently in one step yielding a product with high purity and in useful yields. The invention further refers to some compounds that are novel per se and to some novel compounds useful in the process of the invention.Type: GrantFiled: May 26, 1995Date of Patent: March 12, 1996Assignee: Aktiebolaget AstraInventors: Jan-Erik Nystrom, Hans F. Sjobom
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Patent number: 5223591Abstract: Initiators for cationic polymerization by thermal activation, photochemical activation (UV-irradiation) or activation by electron bombardment are compounds wherein a heterocyclic, aryl substituted or aryl ring is fused to a sulfonium moiety in combination with a non-nucleophilic anion. During the activation of the initiator, a carbon-sulfur bond is broken leading to formation of a sulfide and a carbonium ion within the same molecule. The carbonium ion initiates the polymerization.Type: GrantFiled: November 25, 1991Date of Patent: June 29, 1993Assignee: Ciba-Geigy CorporationInventors: Johan Nyander, Sonny Jonsson, Bjorn Elman, Ann-Britt Pettersson, Per-Erik Sundell, Sven Gothe, Jan-Erik Nystrom