Patents by Inventor Wolfgang Siegert

Wolfgang Siegert 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).

  • Microbicidal preparations based on 1, 2-benzisothiazonlin-3-one with a content of aromatic alcohol
    Patent number: 9872496
    Abstract: Microbicidal preparations containing a) at least one 1,2-benzisothiazolin-3-one or its derivatives; b) at least one 2-mercaptopyridine N-oxide, or its salts and derivatives; c) at least one aromatic alcohol; and d) at least one alkalinizing agent, or a preparation prepared by mixing components a) to d), and having a pH of at least 11, are provided. The microbicidal preparations are clear and storage-stable, and are suitable for use as preservatives.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: January 23, 2018
    Assignee: AIR LIQUIDE SANTE (INTERNATIONAL)
    Inventors: Wolfgang Beilfuss, Gisela Hahn, Klaus Weber, Ralf Gradtke, Wolfgang Siegert
  • Glyceryl ethers as preservatives for cooling lubricants
    Patent number: 8728998
    Abstract: Cooling lubricant (concentrate or solution) comprising a cooling lubricant base based on mineral and/or synthetic oil and preservative comprising (a) one or more 1- or 2-(C3 to C24 alkyl)glyceryl ethers.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: May 20, 2014
    Assignee: Air Liquide Sante (International)
    Inventors: Wolfgang Beilfuss, Ralf Gradtke, Wolfgang Siegert, Karl-Heinz Diehl, Klaus Weber
  • Synergistic preparations based on mixtures of glycerol ether with aromatic alcohol for controlling mycobacteria
    Patent number: 8710103
    Abstract: A method of preserving a cosmetic product by adding to the cosmetic product a concentrate, which may be in anhydrous form, which includes (a) 1-(2-ethylhexyl) glycerol ether, and (b) one or more aromatic alcohols, (a) and (b) having a weight ratio of (a)/(b) is less than or equal to 0.15.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: April 29, 2014
    Assignee: Air Liquide Sante (International)
    Inventors: Wolfgang Beilfuss, Ralf Gradtke, Wolfgang Siegert, Michael Mohr, Klaus Weber
  • SYNERGISTIC PREPARATIONS BASED ON MIXTURES OF GLYCEROL ETHER WITH AROMATIC ALCOHOL FOR CONTROLLING MYCOBACTERIA
    Publication number: 20130231397
    Abstract: A method of preserving a cosmetic product by adding to the cosmetic product a concentrate, which may be in anhydrous form, which includes (a) 1-(2-ethylhexyl) glycerol ether, and (b) one or more aromatic alcohols, (a) and (b) having a weight ratio of (a)/(b) is less than or equal to 0.15.
    Type: Application
    Filed: April 11, 2013
    Publication date: September 5, 2013
    Applicant: AIR LIQUIDE, SANTE (INTERNATIONAL)
    Inventors: Wolfgang BEILFUSS, Ralf GRADTKE, Wolfgang SIEGERT, Michael MOHR, Klaus WEBER
  • Synergistic preparations based on mixtures of glycerol ether with aromatic alcohol for controlling mycobacteria
    Patent number: 8440725
    Abstract: Disinfectant which has activity towards mycobacteria and has (a) 1-(2-ethylhexyl} glycerol ether and (b) one or more aromatic alcohols group including aryloxyalkanols, ethers and arylalkanols.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: May 14, 2013
    Assignee: Air Liquide Sante (International)
    Inventors: Wolfgang Beilfuss, Ralf Gradtke, Wolfgang Siegert, Michael Mohr, Klaus Weber
  • Methods for preserving technical products such as fuels and lubricants with a microbicidal composition
    Patent number: 8349881
    Abstract: Methods for preserving technical products such as fuels and lubricants with a microbicidal composition. The composition is made up of at least one formaldehyde donor compound and at least one antioxidant. The antioxidant is either a gallic ester, a phenol derivative, a L-ascorbic acid, including salts and derivatives thereof, a tocopherol or one of its associated derivatives.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: January 8, 2013
    Assignee: Air Liquide Sante (International)
    Inventors: Ralf Gradtke, Wolfgang Beilfuss, Klaus Weber, Wolfgang Siegert
  • Microbicidal composition based on formaldehyde donor compounds and antioxidants
    Patent number: 8084480
    Abstract: A microbicidal composition and its method of use for preserving technical products such as fuels and lubricants. The composition is made up of at least one formaldehyde donor compound and at least one antioxidant. The antioxidant is either a gallic ester, a phenol derivative, a L-ascorbic acid, including salts and derivatives thereof, a tocopherol or one of its associated derivatives.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: December 27, 2011
    Assignee: Air Liquide Sante (International)
    Inventors: Ralf Gradtke, Wolfgang Beilfuss, Klaus Weber, Wolfgang Siegert
  • Microbicidal composition based on formaldehyde donor compounds and antioxidants
    Patent number: 7935701
    Abstract: Microbicidal composition for product preservation, including a microbicidal composition which comprises a) at least one formaldehyde donor compound and b) at least one antioxidant chosen from gallic esters, phenol derivatives, L-ascorbic acid, and salts and derivatives thereof, and tocopherols and derivatives thereof, and to the use thereof for the preservation of technical products, for example fuels and lubricants.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: May 3, 2011
    Assignee: Air Liquide Sante (International)
    Inventors: Ralf Gradtke, Wolfgang Beilfuss, Klaus Weber, Wolfgang Siegert
  • Synergistic preparations based on mixtures of glycerol ether with aromatic alcohol for controlling mycobacteria
    Publication number: 20100331426
    Abstract: Disinfectant which has activity towards mycobacteria and has (a) 1-(2-ethylhexyl} glycerol ether and (b) one or more aromatic alcohols group including aryloxyalkanols, ethers and arylalkanols.
    Type: Application
    Filed: July 1, 2010
    Publication date: December 30, 2010
    Applicant: AIR LIQUIDE, SANTE (INTERNATIONAL)
    Inventors: Wolfgang BEILFUSS, Ralf GRADTKE, Wolfgang SIEGERT, Michael MOHR, Klaus WEBER
  • Glyceryl ethers as preservatives for cooling lubricants
    Patent number: 7846885
    Abstract: Cooling lubricant (concentrate or solution) comprising a cooling lubricant base based on mineral and/or synthetic oil and preservative comprising (a) one or more 1- or 2-(C3 to C24 alkyl)glyceryl ethers.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: December 7, 2010
    Assignee: Air Liquide Sante (International)
    Inventors: Wolfgang Beilfuss, Ralf Gradtke, Wolfgang Siegert, Karl-Heinz Diehl, Klaus Weber
  • METHODS FOR PRESERVING TECHNICAL PRODUCTS SUCH AS FUELS AND LUBRICANTS WITH A MICROBICIDAL COMPOSITION
    Publication number: 20100216677
    Abstract: Methods for preserving technical products such as fuels and lubricants with a microbicidal composition. The composition is made up of at least one formaldehyde donor compound and at least one antioxidant. The antioxidant is either a gallic ester, a phenol derivative, a L-ascorbic acid, including salts and derivatives thereof, a tocopherol or one of its associated derivatives.
    Type: Application
    Filed: May 7, 2010
    Publication date: August 26, 2010
    Applicant: AIR LIQUIDE SANTE (INTERNATIONAL)
    Inventors: Ralf GRADTKE, Wolfgang BEILFUSS, Klaus WEBER, Wolfgang SIEGERT
  • Microbicidal composition based on formaldehyde donor compounds and antioxidants
    Patent number: 7781467
    Abstract: A microbicidal composition and its method of use for preserving technical products such as fuels and lubricants. The composition is made up of at least one formaldehyde donor compound and at least one antioxidant. The antioxidant is either a gallic ester, a phenol derivative, a L-ascorbic acid, including salts and derivatives thereof, a tocopherol or one of its associated derivatives.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: August 24, 2010
    Assignee: Air Liquide Sante (International)
    Inventors: Ralf Gradtke, Wolfgang Beilfuss, Klaus Weber, Wolfgang Siegert
  • MICROBICIDAL COMPOSITION BASED ON FORMALDEHYDE DONOR COMPOUNDS AND ANTIOXIDANTS
    Publication number: 20090099188
    Abstract: A microbicidal composition and its method of use for preserving technical products such as fuels and lubricants. The composition is made up of at least one formaldehyde donor compound and at least one antioxidant. The antioxidant is either a gallic ester, a phenol derivative, a L-ascorbic acid, including salts and derivatives thereof, a tocopherol or one of its associated derivatives.
    Type: Application
    Filed: December 12, 2008
    Publication date: April 16, 2009
    Applicant: AIR LIQUIDE SANTE (INTERNATIONAL)
    Inventors: Ralf GRADTKE, Wolfgang Beilfuss, Klaus Weber, Wolfgang Siegert
  • Microbicidal preparations based on 1, 2-benzisothiazonlin-3-one with a content of aromatic alcohol
    Publication number: 20080300283
    Abstract: The invention relates to microbicidal preparations which comprise a) at least one of 1,2-benzisothiazolin-3-one and its derivatives, b) at least one of 2-mercaptopyridine N-oxide, its salts and derivatives, c) at least one aromatic alcohol and d) at least one alkalinizing agent, or which are prepared by mixing components a) to d), where the preparations have a pH of at least 11. The preparations are characterized by the fact that they are clear and storage-stable, and they are suitable for use as preservatives.
    Type: Application
    Filed: September 21, 2007
    Publication date: December 4, 2008
    Applicant: AIR LIQUIDE SANTE (INTERNATIONAL)
    Inventors: Wolfgang Beilfuss, Gisela Hahn, Klaus Weber, Ralf Gradtke, Wolfgang Siegert
  • GLYCERYL ETHERS AS PRESERVATIVES FOR COOLING LUBRICANTS
    Publication number: 20080171679
    Abstract: Cooling lubricant (concentrate or solution) comprising a cooling lubricant base based on mineral and/or synthetic oil and preservative comprising (a) one or more 1- or 2-(C3 to C24 alkyl)glyceryl ethers.
    Type: Application
    Filed: August 6, 2007
    Publication date: July 17, 2008
    Applicant: AIR LIQUIDE, SANTE
    Inventors: Wolfgang Beilfuss, Ralf Gradtke, Wolfgang Siegert, Karl--Heinz Diehl, Klaus Weber
  • MICROBICIDAL PREPARATIONS BASED ON 1,2-BENZISOTHIAZOLIN-3-ONEMICROBICIDAL PREPARATIONS BASED ON 1,2-BENZISOTHIAZOLIN-3-ONE
    Publication number: 20080076803
    Abstract: The invention relates to microbicidal preparations which comprise a) at least one of 1,2-benzisothiazolin-3-one and its derivatives, b) at least one of 2-mercaptopyridine N-oxide, its salts and derivatives and c) at least one alkalinizing agent, or which are prepared by mixing components a) to c), where the preparations have a pH of at least 11. The preparations are characterized by the fact that they are clear and storage-stable, and they are suitable for use as preservatives.
    Type: Application
    Filed: August 22, 2007
    Publication date: March 27, 2008
    Applicant: AIR LIQUIDE SANTE (INTERNATIONAL)
    Inventors: Wolfgang BEILFUSS, Gisela HAHN, Kaus WEBER, Ralf GRADTKE, Wolfgang SIEGERT
  • Glyceryl ethers as preservatives for cooling lubricants
    Patent number: 7268102
    Abstract: Cooling lubricant (concentrate or solution) comprising a cooling lubricant base based on mineral and/or synthetic oil and preservative comprising (a) one or more 1- or 2-(C3 to C24 alkyl) glyceryl ethers.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: September 11, 2007
    Assignee: Air Liquide Sante (International)
    Inventors: Wolfgang Beilfuss, Ralf Gradtke, Wolfgang Siegert, Karl-Heinz Diehl, Klaus Weber
  • Glyceryl ethers as preservatives for cooling lubricants
    Publication number: 20070197414
    Abstract: Cooling lubricant (concentrate or solution) comprising a cooling lubricant base based on mineral and/or synthetic oil and preservative comprising (a) one or more 1- or 2-(C3 to C24 alkyl)glyceryl ethers.
    Type: Application
    Filed: April 18, 2007
    Publication date: August 23, 2007
    Applicant: AIR LIQUIDE, SANTE (INTERNATIONAL)
    Inventors: Wolfgang Beilfuss, Ralf Gradtke, Wolfgang Siegert, Karl-Heinz Diehl, Klaus Weber
  • Microbicidal composition based on formaldehyde donor compounds and antioxidants
    Publication number: 20060223806
    Abstract: Microbicidal composition for product preservation, including a microbicidal composition which comprises a) at least one formaldehyde donor compound and b) at least one antioxidant chosen from gallic esters, phenol derivatives, L-ascorbic acid, and salts and derivatives thereof, and tocopherols and derivatives thereof, and to the use thereof for the preservation of technical products, for example fuels and lubricants.
    Type: Application
    Filed: June 1, 2006
    Publication date: October 5, 2006
    Inventors: Ralf Gradtke, Wolfgang Beilfuss, Klaus Weber, Wolfgang Siegert
  • Microbicidal composition based on formaldehyde donor compounds and antioxidants
    Publication number: 20050054642
    Abstract: The invention relates to a microbicidal composition which comprises a) at least one formaldehyde donor compound and b) at least one antioxidant chosen from gallic esters, phenol derivatives, L-ascorbic acid, and salts and derivatives thereof, and tocopherols and derivatives thereof, and to the use thereof for the preservation of technical products, for example fuels and lubricants.
    Type: Application
    Filed: September 3, 2004
    Publication date: March 10, 2005
    Inventors: Ralf Gradtke, Wolfgang Beilfuss, Klaus Weber, Wolfgang Siegert