Patents by Inventor Volker Bartz

Volker Bartz 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).

  • Sodium bicarbonate containing precipitate-free dialysis solutions
    Patent number: 5211643
    Abstract: Dialysis solutions for hemodialysis and the like, are prepared by addition of sufficient acid to lower the pH of a sodium carbonate solution to less than 7.6 under conditions which will retain the carbon dioxide generated by such acid addition and mixing the thus produced solution with a solution of the other ions required in such a dialysis solution, again under conditions which will retain the carbon dioxide, to provide a dialysis solution which, under working conditions, will not cause finely divided precipitates of calcium carbonate to form.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: May 18, 1993
    Assignee: Fresenius AG
    Inventors: Bertold Reinhardt, Volker Bartz
  • Aqueous dialysis and rinsing solution for intraperitoneal administration
    Patent number: 5011826
    Abstract: Peritoneal dialysis solution with usual electrolyte composition in physiological amounts and with galactose as osmotically active substance in an amount of 1-70 g/l.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: April 30, 1991
    Assignee: Fresenius AG
    Inventors: Volker Steudle, Volker Bartz
  • Dialysis and rinsing solution for intraperitoneal administration with antimicrobial activity
    Patent number: 4980374
    Abstract: Peritoneal dialysis solution comprising electrolytes in physiological amounts and at least one osmotically active substance which additionally comprises as antimicrobial substance sorbic acid in an amount of 0.001 to 1% by weight and a pH value of 4 to 7.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: December 25, 1990
    Assignee: Fresenius AG
    Inventors: Volker Steudle, Volker Bartz
  • Dialysis solution for use in intraperitoneal dialysis
    Patent number: 4879280
    Abstract: An aqueous solution for use in intraperitoneal dialysis made up of least one substance for regulation of the electrolyte balance in the body of the patient has a saccharide with at least one glycosidic bond, such as more specially, disaccharides (for example saccharose, maltose and/or lactose) at a level of 0.08 to 0.24 m/l.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: November 7, 1989
    Assignee: Fresenius AG
    Inventors: Gunther Seyffart, Wolfgang Rothe, Volker Bartz, Volker Bartz