Patents by Inventor Ulrich Jahn

Ulrich Jahn 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).

  • Publication number: 20180245252
    Abstract: In an embodiment, the present invention provides a method for producing a structured microfilament non-woven, including: forming a non-woven by spinning microfilaments and/or composite filaments that can be split into microfilaments to form at least one fiber layer, stretching the at least one fiber layer, and laying the at least one fiber layer; thermally pre-bonding the non-woven; treating the thermally pre-bonded non-woven using a pressurized medium in order to break the thermal pre-bonding at least in part; and further applying a pressurized medium to the non-woven while the non-woven is resting on a structure-producing surface, so as to obtain a structured microfilament non-woven.
    Type: Application
    Filed: July 15, 2016
    Publication date: August 30, 2018
    Inventors: Robert Groten, Benedicte Beck, Ulrich Jahn, Abdelkader Ameur, Jean-Francois Kerhault
  • Patent number: 8382926
    Abstract: A method with which a textile sheet having good mechanical properties in respect to relatively high values regarding tear propagation resistance can be produced. The textile sheets are used in areas that require relatively high tear propagation resistance. The textile sheets also have relatively high peak tensile values and/or elongation at break values. The method for the production of a tear propagation-resistant textile sheet comprises providing a starting textile sheet made of yarns, fibers or filaments formed of at least two elementary filaments and having an arrangement in cross-section like orange segments or pie slices with the segments or slices made of different polymers, and exposing the starting textile sheet to a compressing heat treatment, wherein the polymer segments are permeated and a substantially non-adhesive bond is achieved between the polymer segments. The textile sheet may comprise nonwoven materials having a specific tear propagation resistance of equal to or greater than 0.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: February 26, 2013
    Assignee: Carl Freudenberg KG
    Inventors: Robert Groten, Ulrich Jahn, Georges Riboulet, Michael Hess, Ameur Abdelkader
  • Patent number: 8021997
    Abstract: A multicomponent spunbonded nonwoven is provided which is composed of at least two polymers which form interfaces toward one another, which are produced by at least one spinning machine having uniform spinning nozzle apertures, and which are hydrodynamically drawn, lapped in a sheet-like manner, and bonded, the multicomponent spunbonded nonwoven being composed of different filaments which contain at least two polymers, or it being composed of a mixture of multicomponent filaments and monocomponent filaments which each contain only one of the polymers, the multicomponent filament being composed of at least two elementary filaments and the titer of the individual filaments varying by the number of elementary filaments contained in the filaments.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: September 20, 2011
    Assignee: Carl Freudenberg KG
    Inventors: Robert Groten, Ulrich Jahn, Georges Riboulet
  • Publication number: 20100209684
    Abstract: A method with which a textile sheet having good mechanical properties in respect to relatively high values regarding tear propagation resistance can be produced. The textile sheets are used in areas that require relatively high tear propagation resistance. The textile sheets also have relatively high peak tensile values and/or elongation at break values. The method for the production of a tear propagation-resistant textile sheet comprises providing a starting textile sheet made of yarns, fibers or filaments formed of at least two elementary filaments and having an arrangement in cross-section like orange segments or pie slices with the segments or slices made of different polymers, and exposing the starting textile sheet to a compressing heat treatment, wherein the polymer segments are permeated and a substantially non-adhesive bond is achieved between the polymer segments. The textile sheet may comprise nonwoven materials having a specific tear propagation resistance of equal to or greater than 0.
    Type: Application
    Filed: July 2, 2008
    Publication date: August 19, 2010
    Applicant: CARL FREUDENBERG KG
    Inventors: Robert Groten, Ulrich Jahn, Georges Riboulet, Michael Hess, Ameur Abdelkader
  • Publication number: 20060019570
    Abstract: A multicomponent spunbonded nonwoven is provided which is composed of at least two polymers which form interfaces toward one another, which are produced by at least one spinning machine having uniform spinning nozzle apertures, and which are hydrodynamically drawn, lapped in a sheet-like manner, and bonded, the multicomponent spunbonded nonwoven being composed of different filaments which contain at least two polymers, or it being composed of a mixture of multicomponent filaments and monocomponent filaments which each contain only one of the polymers, the multicomponent filament being composed of at least two elementary filaments and the titer of the individual filaments varying by the number of elementary filaments contained in the filaments.
    Type: Application
    Filed: July 20, 2005
    Publication date: January 26, 2006
    Applicant: Carl Freudenberg KG
    Inventors: Robert Groten, Ulrich Jahn, Georges Riboulet
  • Publication number: 20050221012
    Abstract: A method for manufacturing a synthethic leather includes the steps of obtaining a polyurethane prepolymer from isocyantates and linear hydroxyl-terminated polyols having molecular weights of 500 to 5,000 g/mol, wherien the isocyanates include at least one of aliphatic, cyclophatic, and non-aromatic heterocyclic di- and or tri-isocyanates. A first aqueaous dispersion of the polyurethane prepolymer is provided and mixed with a second aqueous dispersion or solution of a catalyst and at least one cross-linking constituent so as to create a mixture. The method further includes impregnating a textile fabric with the mixture and drying and reacting the prepolymers to completion at a temperature from 80 to 180° C. In addition, a synthetic letter manufactured according to the method.
    Type: Application
    Filed: February 28, 2005
    Publication date: October 6, 2005
    Inventors: Horst Muehlfeld, Frank Jestel, Robert Groten, Ulrich Jahn, Thomas Schauber
  • Publication number: 20040235382
    Abstract: A mat for the computer input device known as a mouse (mouse pad) has at least one woven or knit layer or one layer of non-woven fabric made of bi-component or multi-component fibers or filaments split to form microfibers or microfilaments. The splitting is performed by high-pressure fluid jet treatment of the surface.
    Type: Application
    Filed: May 19, 2004
    Publication date: November 25, 2004
    Applicant: Carl Freudenberg KG
    Inventors: Robert Groten, Georges Riboulet, Ulrich Jahn
  • Publication number: 20040222545
    Abstract: A method for manufacturing a fabric from at least partially split yarns, fibers or filaments, which are formed from at least two elementary filaments and originate from a common spinneret, and are formed into one fabric, which is compressed at a temperature between the glass transition temperature (Tg) and the melting temperature of the polymer(s) employed to a density of at least 10% of the density of the polymer(s) used, so that, under the subsequent action of further mechanical forces, at least a partial splitting into the elementary filaments takes place.
    Type: Application
    Filed: December 9, 2003
    Publication date: November 11, 2004
    Applicant: Carl Freudenberg KG
    Inventors: Denis Reibel, Delphine Guigner, Georges Riboulet, Robert Groten, Ulrich Jahn
  • Patent number: 6228524
    Abstract: The invention relates to a storage battery with several cylindrical cells, the cell walls of which are in close heat-conducting contact with a temperature-control device. The temperature-control device has at least two hollow bodies (2) through which a temperature-control medium flows, which bodies display semicircular bulges (6), the radii of which correspond approximately to that of the cells (1), and which are arranged in such a way that they fix the spatial positions of the cells (1) to each other.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: May 8, 2001
    Assignee: Varta Aktiengesellschaft
    Inventors: Uwe Köhler, Ulrich Jahn
  • Patent number: 5616395
    Abstract: A process for the production of a two-layer textile reinforcement for the production of bituminous sealing sheets for roofing consists first, from a first layer based on nonwoven cloth, in consolidating this nonwoven cloth by mechanical or hydraulic bonding and in thermostabilizing it. This first consolidated and thermostabilized layer is then assembled with a second mineral fiber layer, either by counter-gluing, or by needling, or by seam knitting. These two latter assembly methods are used only when the second mineral fiber layer is in the form of a grid or cloth of continuous or discontinuous mineral filaments. The first assembly method by counter-gluing is itself used no matter what the structure of the second mineral filament layer, whether it be in the form of a grid or a cloth of continuous or discontinuous mineral fibers or in the form of a scrim of mineral fibers.
    Type: Grant
    Filed: February 9, 1995
    Date of Patent: April 1, 1997
    Assignee: Freudenberg Spunweb S.A.
    Inventors: Jean Baravian, Ulrich Jahn, Robert Groten, Jean-Jacques Beck
  • Patent number: 4668786
    Abstract: New derivatives of theophylline having the formula ##STR1## wherein R is hydrogen or a hydroxy group, and n is an integer of 0.ltoreq.n.ltoreq.3 and/or the pharmaceutically acceptable, acid addition salts thereof, exhibit in addition to other properties, histamine-serotinine- bradykynine- antagonistic, anti-anaphylactic and .beta.-adrenergic stimulating effects.
    Type: Grant
    Filed: December 26, 1985
    Date of Patent: May 26, 1987
    Assignee: Siegfried Aktiengesellschaft
    Inventors: Kurt Thiele, Felix Geissmann, Ludwig Zirngibl, Ulrich Jahn
  • Patent number: 4603204
    Abstract: New derivatives of theophylline having the formula ##STR1## in which R denotes hydrogen or OH, n the numbers 0 or 1, X either >CH-- or >N--, Y either --O-- or --CO-- and R a five membered or six membered aryl ring or hetero-aryl ring, that is substituted in given cases with halogen, short chain alkyl groups, alkoxy groups or halogen-alkyl, and exhibit in addition to other properties, histamine-, serotinine- bradykynine- antagonistic, anti-anaphylactic and -adrenergic stimulating effects.
    Type: Grant
    Filed: March 11, 1983
    Date of Patent: July 29, 1986
    Assignee: Siegfried Aktiengesellschaft
    Inventors: Kurt Thiele, Felix Geissmann, Ludwig Zirngibl, Ulrich Jahn
  • Patent number: 4526898
    Abstract: 4-(2-Imidazolin-2-yl-amino)-2-methyl-indazole is a highly selective and effective .alpha..sub.2 -antagonist, .alpha..sub.1 -partial agonist and .alpha..sub.1s -agonist and displays anti-hypertensive activity and antagonistic activity on adrenaline and noradrenaline. It is useful as an .alpha.-adrenoceptor influencing and as an anti-hypertensively active drug.
    Type: Grant
    Filed: September 7, 1983
    Date of Patent: July 2, 1985
    Assignee: Siegfried Aktiengesselschaft
    Inventors: Istvan Molnar, Kurt Thiele, Felix Geissmann, Ulrich Jahn
  • Patent number: 4483999
    Abstract: Novel compounds of the formula ##STR1## wherein R.sup.1 is hydrogen, halogen, or alkyl or alkoxy containing from 1 to 4 carbon atoms,R.sup.2 is hydrogen, halogen, hydroxy or alkyl of alkoxy containing from 1 to 4 carbon atoms,n and m are integers such that the sum (n+m) lies in the range from 3 to 10 inclusive and n differs from m, andx is alkyl containing from 1 to 4 carbon atoms, hydrogen or a cation which is a metal cation of main Groups 1, 2 and 3 of the Periodic System of the Elements, an organic base cation or an ammonium ion. These compounds have pharmaceutical utility by virtue of their considerable ability to reduce the level of fatty substances in the blood.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: November 20, 1984
    Assignee: Siegfried Aktiengesellschaft
    Inventors: Kurt Thiele, Quazi Ahmed, Rudolf Adrian, Ulrich Jahn
  • Patent number: 4436913
    Abstract: 1H- and 2H- indazole derivatives and pharmaceuticals containing these blood-pressure lowering 1H- and 2H- indazole derivatives of the formula ##STR1## and their acid addition salts, wherein R1 may be in position 1 or position 2 on the nitrogen atoms in formula I. The groups R1, R2 and R3 represent hydrogen or the usual lower molecular groups. The R group is a 2-imidazolinylamino group or a 3,4,5,6-tetryhydropyrimidinylamino group, wherein these groups may also be present in their tautomeric forms. These groups may also be in an aryl group in the R1 group, in which case the R group may also be a halogen atom. R may only represent one of the heterocyclic secondary or tertiary amino groups in the 4 or 7 position for the 1H- indazole derivatives when the R1 group is simultaneously an aryl or an aralkyl group.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: March 13, 1984
    Assignee: Siegfried Aktiengesellschaft
    Inventors: Istvan Molnar, Kurt Thiele, Felix Geissmann, Ulrich Jahn
  • Patent number: 4305942
    Abstract: Therapeutic xanthine oxidase inhibitor composition containing as an active ingredient 3-dimethylamino-7-methyl-1,2-(n-propylmalonyl)-1,2-dihydro-1,2,4-benzotria zine dihydrate of the formula ##STR1## Uratic diathesis in warm-blooded animals is therapeutically treated by administering the aforementioned xanthine oxidase inhibitor to such animals, e.g., human, either orally or by means of an injection, thereby inhibiting their xanthine oxidase activity.
    Type: Grant
    Filed: October 28, 1980
    Date of Patent: December 15, 1981
    Assignee: Siegfried Aktiengesellschaft
    Inventors: Kurt Thiele, James S. G. Cox, Johanna Fischer, Ulrich Jahn
  • Patent number: 4275068
    Abstract: Novel alkylene glycol derivatives of the formula (1) ##STR1## in which R.sup.1 is the hydrogen atom, an alkyl group having 1-4 C-atoms or an aryl group, R.sup.2 is the hydrogen atom or an alkyl group having 1-4 C-atoms, R.sup.3 is the hydrogen atom or a group of the formula ##STR2## in which Z is an alkyl residue, an optionally substituted aryl residue or a heterocyclic residue and R.sup.4 is a residue of the formula ##STR3## in which R.sup.5 is the hydrogen atom or chlorine atom, or the methyl group, exhibit an advantageous activity in regard of lowering the cholesterol and triglyceride level in the blood. Production of the novel derivatives by reduction of the corresponding acids, or by reacting a phenol of the formula ##STR4## and an alcohol of the formula ##STR5## optionally with subsequent esterification, is described.
    Type: Grant
    Filed: April 23, 1979
    Date of Patent: June 23, 1981
    Assignee: Siegfried AG
    Inventors: Kurt Thiele, Quazi Ahmed, Ulrich Jahn, Rudolf Adrian
  • Patent number: 4214095
    Abstract: Novel compounds of the formula (1) ##STR1## wherein R.sup.1 and R.sup.2 are different lower alkyls and R.sup.3 is a lower alkyl or a methyl pyridine group, and the acid addition salts of formula (1) compounds when R.sup.3 is methyl pyridine. The novel compounds have an asymmetric C-atom and may be in the form of the D,L racemates or the D or L stereoisomers.These compounds are useful in the treatment of hypercholesterolemia and hyperlipidemia because of their high effectiveness in reducing the level of cholesterol and lipids in the blood combined with very low general toxicities and substantially reduced hepatomegalitic effects.
    Type: Grant
    Filed: January 25, 1979
    Date of Patent: July 22, 1980
    Assignee: Siegfried Aktiengesellschaft
    Inventors: Kurt Thiele, Quazi Ahmed, Rudolf Adrian, Ulrich Jahn
  • Patent number: 4204998
    Abstract: Novel hydrazines are disclosed in which one of the nitrogen atoms forms a ring member of the five membered ring of a [4.3.0] heterobicyclic compound which may be substituted elsewhere in the ring system. Characteristic ring systems described include indole and benztriazole ring systems. The compounds possess anti-depressant properties as well as anti-microbial, in particular fungistatic and bacteriostatic, properties.
    Type: Grant
    Filed: May 5, 1978
    Date of Patent: May 27, 1980
    Assignee: Siegfried Aktiengesellschaft
    Inventors: Franz Schatz, Christian Stammbach, Kurt Thiele, Theodor W. Wagner-Jauregg, Ludwig Zirngibl, Johanna Fischer, Ulrich Jahn
  • Patent number: 4182902
    Abstract: p-(p'-chlorobenzyl) phenoxyacetic acid.
    Type: Grant
    Filed: September 13, 1978
    Date of Patent: January 8, 1980
    Assignee: Siegfried Aktiengesellschaft
    Inventors: Kurt Thiele, Quazi Armed, Rudolf Adrian, Ulrich Jahn