Patents by Inventor Patrick Hähnel

Patrick Hähnel 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).

  • Environmentally friendly ester-structures as viscosifier for oil based drilling fluids
    Patent number: 11319473
    Abstract: The present invention relates to a mixture of esters obtainable by reacting components of an esterifiable composition with each other, wherein the esterifiable composition comprises at least one trimer fatty acid, at least one fatty acid and at least one hydroxy monocarboxylic acid and a production process of the mixture of esters. Furthermore, the present invention relates to environmental friendly, preferably oil based, drilling fluids comprising the above-mentioned mixture of esters, water and an organic phase and the use of said mixture as viscosifier for drilling fluids.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: May 3, 2022
    Assignee: Emery Oleochemicals GmbH
    Inventors: Diana Maeker, Patrick Haehnel
  • ENVIRONMENTALLY FRIENDLY ESTER-STRUCTURES AS VISCOSIFIER FOR OIL BASED DRILLING FLUIDS
    Publication number: 20210403787
    Abstract: The present invention relates to a mixture of esters obtainable by reacting components of an esterifiable composition with each other, wherein the esterifiable composition comprises at least one trimer fatty acid, at least one fatty acid and at least one hydroxy monocarboxylic acid and a production process of the mixture of esters. Furthermore, the present invention relates to environmental friendly, preferably oil based, drilling fluids comprising the above-mentioned mixture of esters, water and an organic phase and the use of said mixture as viscosifier for drilling fluids.
    Type: Application
    Filed: July 13, 2018
    Publication date: December 30, 2021
    Applicant: Emery Oleochemicals GmbH
    Inventors: Diana Maeker, Patrick Haehnel
  • Esters for drilling emulsions and metal working fluids
    Patent number: 9896613
    Abstract: The present invention relates to an emulsion comprising at least (a) an organic phase, (b) a water phase and (c) an ester based on an ether carboxylic acid and an alcohol. Also within the ambit of the invention is the use of an ester as defined in (c) as emulsifier, as a thickening agent and/or as an anti-foaming agent in particular in drilling emulsions and metal working fluids.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: February 20, 2018
    Assignee: Amril AG
    Inventors: Heinz Müller, Diana Mäker, Patrick Hähnel
  • ESTERS FOR DRILLING EMULSIONS AND METAL WORKING FLUIDS
    Publication number: 20150210914
    Abstract: The present invention relates to an emulsion comprising at least (a) an organic phase, (b) a water phase and (c) an ester based on an ether carboxylic acid and an alcohol. Also within the ambit of the invention is the use of an ester as defined in (c) as emulsifier, as a thickening agent and/or as an anti-foaming agent in particular in drilling emulsions and metal working fluids.
    Type: Application
    Filed: July 26, 2012
    Publication date: July 30, 2015
    Applicant: AMRIL AG
    Inventors: Heinz Müller, Diana Mäker, Patrick Hähnel