Patents by Inventor Gerhard Eugen Wahsner

Gerhard Eugen Wahsner 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).

  • AQUEOUS FORMULATIONS COMPRISING POLYAROMATIC COMPOUNDS BEARING ACID GROUPS AND/OR SALTS OF ACID GROUPS, PROCESS FOR PRODUCING THEM, FURTHER FORMULATIONS PRODUCED USING THE AQUEOUS FORMULATIONS AND USE OF THE FURTHER FORMULATIONS IN FUEL CELLS
    Publication number: 20100316929
    Abstract: Process for producing aqueous formulations (A) comprising at least one polyaromatic compound bearing acid groups and/or salts of acid groups and also aqueous formulations (A) which have been produced according to the process of the invention. Also a process for producing dried formulations (B) by removing the water from the aqueous formulations (A) and also the dried formulations (B) themselves. In addition a formulation (C) comprising the dried formulation (B) of the invention and also water or an aqueous formulation (A) and a water-comprising formulation (D) comprising the aqueous formulation (A) of the invention or the formulation (C) of the invention and additionally at least 2% by weight of an organic solvent. Additionally dry formulations (E) which are obtained by removing water from the water-comprising formulations (D) of the invention.
    Type: Application
    Filed: December 6, 2007
    Publication date: December 16, 2010
    Applicant: BASF SE
    Inventors: Guenter Oetter, Ria Kress, Dennis Loesch, Alexander Khvorost, Gerhard Eugen Wahsner
  • Aqueous formulations containing polyaromatic compounds with acid groups
    Patent number: 7776957
    Abstract: The present invention relates to a process for preparing aqueous formulations (A) comprising at least one polyaromatic compound bearing acid groups, in particular a sulfonated polyaromatic compound, and also aqueous formulations (A) which have been prepared by the process of the invention. Furthermore, the present invention relates to a process for preparing dried formulations (B) by removing the water from the aqueous formulations (A) and also the dried formulations (B) themselves. The present invention further provides a formulation (C) comprising the dried formulation (B) of the invention and water or the formulation A of the invention and a water-comprising formulation (D) comprising the aqueous formulation (A) or the formulation (C) of the invention and additionally at least 2% by weight of an organic solvent. Furthermore, the present invention relates to dry formulations (E) which are obtained by removing water and solvent from the water-comprising formulations (D) of the invention.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: August 17, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Alexander Khvorost, Gerhard Eugen Wahsner, Sven Thate, Harald Boehnke, Dennis Loesch
  • Aqueous Formulations Containing Polyaromatic Compounds With Acid Groups
    Publication number: 20080214719
    Abstract: The present invention relates to a process for preparing aqueous formulations (A) comprising at least one polyaromatic compound bearing acid groups, in particular a sulfonated polyaromatic compound, and also aqueous formulations (A) which have been prepared by the process of the invention. Furthermore, the present invention relates to a process for preparing dried formulations (B) by removing the water from the aqueous formulations (A) and also the dried formulations (B) themselves. The present invention further provides a formulation (C) comprising the dried formulation (B) of the invention and water or the formulation A of the invention and a water-comprising formulation (D) comprising the aqueous formulation (A) or the formulation (C) of the invention and additionally at least 2% by weight of an organic solvent. Furthermore, the present invention relates to dry formulations (E) which are obtained by removing water and solvent from the water-comprising formulations (D) of the invention.
    Type: Application
    Filed: June 29, 2006
    Publication date: September 4, 2008
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Alexander Khvorost, Gerhard Eugen Wahsner, Sven Thate, Harald Bohnke, Dennis Losch