Patents by Inventor Wolfgang Ahlers

Wolfgang Ahlers 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).

  • Patent number: 10526558
    Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: January 7, 2020
    Assignee: BASF SE
    Inventors: Wolfgang Ahlers, Andreas Fechtenkoetter, Frank-Olaf Maehling, Irene Troetsch-Schaller, Ansgar Eisenbeis
  • Publication number: 20180334631
    Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.
    Type: Application
    Filed: July 26, 2018
    Publication date: November 22, 2018
    Applicant: BASF SE
    Inventors: Wolfgang Ahlers, Andreas Fechtenkoetter, Frank-Olaf Maehling, Irene Troetsch-Schaller, Ansgar Eisenbeis
  • Patent number: 10047314
    Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: August 14, 2018
    Assignee: BASF SE
    Inventors: Wolfgang Ahlers, Andreas Fechtenkoetter, Frank-Olaf Maehling, Irene Troetsch-Schaller, Ansgar Eisenbeis
  • Patent number: 9605227
    Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: March 28, 2017
    Assignee: BASF SE
    Inventors: Wolfgang Ahlers, Andreas Fechtenkoetter, Frank-Olaf Maehling, Irene Troetsch-Schaller, Ansgar Eisenbeis
  • Publication number: 20140107005
    Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. En addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.
    Type: Application
    Filed: December 20, 2013
    Publication date: April 17, 2014
    Applicant: BASF SE
    Inventors: Wolfgang Ahlers, Andreas Fechtenkoetter, Frank-Olaf Maehling, Irene Troetsch-schaller, Ansgar Eisenbeis
  • Patent number: 8642521
    Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: February 4, 2014
    Assignee: BASF SE
    Inventors: Wolfgang Ahlers, Andreas Fechtenkoetter, Frank-Olaf Maehling, Irene Troetsch-Schaller, Ansgar Eisenbeis
  • Patent number: 8110709
    Abstract: The present invention relates to a process for the hydroformylation of ethylenically unsaturated compounds by reaction with carbon monoxide and hydrogen in the presence of a catalytically active fluid which comprises a dissolved metal complex of a metal of transition group VIII of the Periodic Table of the Elements with at least one phosphoramidite compound as ligand, wherein the fluid is brought into contact with a base.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: February 7, 2012
    Assignee: BASF SE
    Inventors: Rainer Papp, Wolfgang Ahlers, Thomas Mackewitz, Rocco Paciello, Martin Volland
  • Publication number: 20110118159
    Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.
    Type: Application
    Filed: January 21, 2011
    Publication date: May 19, 2011
    Applicant: BASF Aktiengesellschaft
    Inventors: Wolfgang AHLERS, Andreas Fechtenkötter, Frank-Olaf Mähling, Irene Trötsch-Schaller, Ansgar Eisenbeis
  • Publication number: 20100208261
    Abstract: A device (110) for determining at least one optical property of a sample (112) is proposed. The device (110) comprises a tuneable excitation light source (114; 410) for applying excitation light (122) to the sample (112). The device (110) furthermore comprises a detector (128, 130; 312) for detecting detection light (132, 136; 314) emerging from the sample (112). The excitation light source (114; 410) comprises a light-emitting diode array (114), which is configured at least partly as a monolithic light-emitting diode array (114). The monolithic light-emitting diode array (114) comprises at least three light-emitting diodes (426) each having a different emission spectrum.
    Type: Application
    Filed: October 8, 2008
    Publication date: August 19, 2010
    Applicant: BASF SE
    Inventors: Ruediger Sens, Christos Vamvakaris, Wolfgang Ahlers, Erwin Thiel
  • Publication number: 20100113767
    Abstract: A process for preparing compounds of the general formula (I) by reacting the compound of the general formula (II) where L, L? are the same or different and are each independently Cl or OH in the presence of a. chlorine compounds Cl-M2R1R2R3, Cl-M3R4R5R6, with the proviso that L and L? are not both simultaneously OH, or b. hydroxyl compounds HO-M2R1R2R3, HO-M3R4R5R6. The use of compounds of the general formula (I) as markers for liquids and a process for detecting markers in liquids.
    Type: Application
    Filed: March 31, 2008
    Publication date: May 6, 2010
    Applicant: BASF SE
    Inventors: Thomas Gessner, Ruediger Sens, Wolfgang Ahlers, Christos Vamvakaris
  • Publication number: 20100011656
    Abstract: The invention relates to the use of rylene derivatives of the general formula (I) as markers for liquids, where the symbols and indices have the meanings given in the specification.
    Type: Application
    Filed: February 23, 2007
    Publication date: January 21, 2010
    Applicant: BASF SE
    Inventors: Thomas Gessner, Sophia Ebert, Ruediger Sens, Martin Koenemann, Wolfgang Ahlers, Christos Vamvakaris
  • Publication number: 20090282732
    Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.
    Type: Application
    Filed: June 26, 2009
    Publication date: November 19, 2009
    Applicant: BASF Aktiengesellschaft
    Inventors: Wolfgang Ahlers, Andreas Fechtenkotter, Frank-Olaf Mahling, Irene Trotsch-Schaller, Ansgar Eisenbeis
  • Patent number: 7615645
    Abstract: The invention relates to a method for the continuous production of aldehydes by the isomerising hydroformylation in a homogenous phase of olefin compositions by means of a synthesis gas, in the presence of a homogeneous rhodium catalyst that is complexed with an organophosphorus ligand containing oxygen atoms and/or nitrogen atoms and a free ligand. The production is carried out at high temperature and high pressure in a multi-stage reaction system consisting of at least two reaction zones. According to the method, the olefin composition is first reacted in a first reaction zone or a group of several first reaction zones at a total pressure of between 10 and 40 bar, using a synthesis gas with a CO/H2 molar ratio of between 4:1 and 1:2 until a 40 to 95% conversion of the ?-olefins is obtained.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: November 10, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Volland, Thomas Mackewitz, Wolfgang Ahlers, Ansgar Schäfer, Wolfgang Richter, Rocco Paciello
  • Publication number: 20090227801
    Abstract: The invention relates to chiral phosphorus chelate compounds, to catalysts comprising such a compound such a compound as the ligand, and to asymmetric synthesis methods in the presence of such a catalyst.
    Type: Application
    Filed: October 10, 2005
    Publication date: September 10, 2009
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Wolfgang Ahlers, Martina Egen, Martin Volland, Christoph Jakel, Frank Hettche, Rocco Paciello
  • Publication number: 20090189086
    Abstract: Phthalocyanines of the formula (I) where the symbols and indices each have the definitions specified in the description are suitable as markers for liquids, especially mineral oils.
    Type: Application
    Filed: March 7, 2007
    Publication date: July 30, 2009
    Applicant: BASF SE
    Inventors: Thomas Gessner, Sophia Ebert, Rüdiger Sens, Martin Könemann, Wolfgang Ahlers, Christos Vamvakaris
  • Publication number: 20090006004
    Abstract: A method is proposed for detecting at least one chemical compound V contained in a medium (312). The method comprises a verification step (420) which is used to determine whether V is contained in the medium (312). The method furthermore comprises an analysis step (424) in which a concentration c of the at least one chemical compound V is determined.
    Type: Application
    Filed: December 27, 2006
    Publication date: January 1, 2009
    Applicant: BASF SE
    Inventors: Rudiger Sens, Christos Vamvakaris, Wolfgang Ahlers, Erwin Thiel
  • Publication number: 20080318331
    Abstract: The use of compounds of the general formula (I) as markers for liquids, methods for detecting markers in liquids, methods for identifying liquids and selected compounds of the general formula (I).
    Type: Application
    Filed: December 12, 2007
    Publication date: December 25, 2008
    Applicant: BASF SE
    Inventors: Rüdiger Sens, Thomas Gessner, Sophia Ebert, Christos Vamvakaris, Wolfgang Ahlers
  • Publication number: 20080194446
    Abstract: The present invention relates to the use of selected dibenzanthrone or isodibenzanthrone derivatives as markers for liquids, in particular for mineral oils. The present invention further relates both to fuel and lubricant additive concentrates and to mineral oils which comprise at least one such dibenzanthrone or isodibenzanthrone derivative.
    Type: Application
    Filed: March 9, 2006
    Publication date: August 14, 2008
    Applicant: Basf Aktiengesellschaft
    Inventors: Sophia Ebert, Rudiger Sens, Christos Vamvakaris, Wolfgang Ahlers
  • Publication number: 20080178523
    Abstract: The invention relates to the use of polymers which comprise, in copolymerized form, an ?-olefin, an alkenyl ester of a carboxylic acid and an ester of an ?,?-unsaturated carboxylic acid as an additive for turbine fuels and in particular as a cold flow improver for turbine fuels, to the turbine fuels additized with these polymers, and to additive packets comprising such copolymers.
    Type: Application
    Filed: April 13, 2006
    Publication date: July 31, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Wolfgang Ahlers, Frank-Olaf Mahling, Thomas Pfeiffer, Dietmar Posselt
  • Publication number: 20070094920
    Abstract: The use is described of polymers which contain, in copolymerized form, an ?-olefin, a vinyl ester and an ester of an ?,?-unsaturated carboxylic acid as an additive for fuel oils and lubricants and in particular as a cold flow improver in fuel oils. In addition, the fuel oils and lubricants additized with these polymers; and also additive packages comprising such polymers are described.
    Type: Application
    Filed: December 3, 2004
    Publication date: May 3, 2007
    Applicant: Basf Aktiengesellschaft
    Inventors: Wolfgang Ahlers, Andreas Fechtenkotter, Frank-Olaf Mahling, Irene Trotsch-Schaller, Ansgar Eisenbeis