Patents by Inventor Ralf Warratz

Ralf Warratz 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: 9945806
    Abstract: An electrochemical gas sensor includes an electrolyte including at least one ionic liquid which includes an additive portion including at least one organic additive, at least one organometallic additive or at least one inorganic additive.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: April 17, 2018
    Assignee: MSA EUROPE GMBH
    Inventors: Rolf Eckhardt, Martin Weber, Kathrin Keller, Kathrin Tölle, Ralf Warratz
  • Patent number: 9885694
    Abstract: The invention concerns a method for detection of the concentration of at least one gaseous target substance (10) in a gas or a gas mixture (20), especially air, wherein: a) a first measured value (11) of the concentration of the at least one gaseous target substance (10) is saved as the first measured value (11) in a predetermined way and then b) the at least one target substance (10) is kept away from the sensor (1) with a gas shielding device (2) for a predetermined period of time, so that the concentration of the at least one target substance (10) measured by the sensor changes, c) before the end of the shielding of the sensor (1), the magnitude of the measured concentration and/or the direction of the change in concentration of the gaseous target substance (10) as detected by the sensor (1) is saved as the second measured value (12), d) the sensor (1) is then exposed again to the gas (20) with the at least one gaseous target substance (10), while e) on the basis of the difference between the first measure
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 6, 2018
    Assignee: MSA EUROPE GMBH
    Inventors: Ralf Warratz, Martin Weber
  • Patent number: 9395323
    Abstract: An electrochemical gas sensor, particularly for the detection of ammonia and/or amines, with an ionic fluid as an electrolyte, wherein the ionic fluid contains at least one protic ammonium cation with at least one dissociable hydrogen atom, whereby the at least one protic ammonium cation reacts with the ammonia and/or amines to be measured via deprotonation. The present invention also relates to the use of such a gas sensor.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: July 19, 2016
    Assignee: MSA EUROPE GMBH
    Inventor: Ralf Warratz
  • Publication number: 20160011143
    Abstract: An electrochemical gas sensor includes an electrolyte including at least one ionic liquid which includes an additive portion including at least one organic additive, at least one organometallic additive or at least one inorganic additive.
    Type: Application
    Filed: June 18, 2015
    Publication date: January 14, 2016
    Inventors: Rolf Eckhardt, Martin Weber, Kathrin Keller, Kathrin Tölle, Ralf Warratz
  • Publication number: 20150316522
    Abstract: The invention concerns a method for detection of the concentration of at least one gaseous target substance (10) in a gas or a gas mixture (20), especially air, wherein: a) a first measured value (11) of the concentration of the at least one gaseous target substance (10) is saved as the first measured value (11) in a predetermined way and then b) the at least one target substance (10) is kept away from the sensor (1) with a gas shielding device (2) for a predetermined period of time, so that the concentration of the at least one target substance (10) measured by the sensor changes, c) before the end of the shielding of the sensor (1), the magnitude of the measured concentration and/or the direction of the change in concentration of the gaseous target substance (10) as detected by the sensor (1) is saved as the second measured value (12), d) the sensor (1) is then exposed again to the gas (20) with the at least one gaseous target substance (10), while e) on the basis of the difference between the first measure
    Type: Application
    Filed: March 15, 2013
    Publication date: November 5, 2015
    Inventors: RALF WARRATZ, MARTIN WEBER
  • Patent number: 9063079
    Abstract: An electrochemical gas sensor includes an electrolyte including at least one ionic liquid which includes an additive portion including at least one organic additive, at least one organometallic additive or at least one inorganic additive.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: June 23, 2015
    Assignee: MSA Europe GmbH
    Inventors: Rolf Eckhardt, Martin Weber, Kathrin Keller, Kathrin Tölle, Ralf Warratz
  • Publication number: 20140299470
    Abstract: An electrochemical gas sensor, particularly for the detection of ammonia and/or amines, with an ionic fluid as an electrolyte, wherein the ionic fluid contains at least one protic ammonium cation with at least one dissociable hydrogen atom, whereby the at least one protic ammonium cation reacts with the ammonia and/or amines to be measured via deprotonation. The present invention also relates to the use of such a gas sensor.
    Type: Application
    Filed: October 25, 2012
    Publication date: October 9, 2014
    Applicant: MSA AUER GMBH
    Inventor: Ralf Warratz
  • Patent number: 8623189
    Abstract: An electrochemical gas sensor includes an ionic liquid as electrolyte. The ionic liquid includes at least one cation selected from the group of a monoalkylammonium cation, a dialkylammonium cation, and a trialkylammonium cation. The individual alkyl groups of the cation can be branched or unbranched and have 1 to 4 carbon atoms. The individual alkyl groups of the cation can be the same or different in case of the dialkylammonium cation and the trialkylammonium cation. In a number of embodiments, the individual alkyl groups have 2 to 4 carbon atoms.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: January 7, 2014
    Assignee: MSA Auer GmbH
    Inventors: Rolf Eckhardt, Ralf Warratz
  • Publication number: 20110253534
    Abstract: An electrochemical gas sensor includes an ionic liquid as electrolyte. The ionic liquid includes at least one cation selected from the group of a monoalkylammonium cation, a dialkylammonium cation, and a trialkylammonium cation. The individual alkyl groups of the cation can be branched or unbranched and have 1 to 4 carbon atoms. The individual alkyl groups of the cation can be the same or different in case of the dialkylammonium cation and the trialkylammonium cation. In a number of embodiments, the individual alkyl groups have 2 to 4 carbon atoms.
    Type: Application
    Filed: November 25, 2009
    Publication date: October 20, 2011
    Applicant: MSA AUER GMBH
    Inventors: Rolf Eckhardt, Ralf Warratz
  • Publication number: 20110226619
    Abstract: An electrochemical gas sensor includes an electrolyte including at least one ionic liquid which includes an additive portion including at least one organic additive, at least one organometallic additive or at least one inorganic additive.
    Type: Application
    Filed: November 25, 2009
    Publication date: September 22, 2011
    Applicant: MSA AUER GMBH
    Inventors: Rolf Eckhardt, Martin Weber, Kathrin Keller, Kathrin Tolle, Ralf Warratz