Patents by Inventor Wolfgang Beilfuss

Wolfgang Beilfuss 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).

  • Method for disinfecting
    Patent number: 4221660
    Abstract: A method for disinfecting an aqueous system which comprises contacting the system with a solid aromatic percarboxylic acid having solubility in water not greater than about 1 weight-percent in a weight-percent amount in excess of said solubility in water; and a method for disinfecting materials with said aqueous system.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: September 9, 1980
    Assignee: Sterling Drug Inc.
    Inventors: Heinz Eggensperger, Wolfgang Beilfuss, Wolfgang Zerling
  • Aqueous peroxy-containing concentrate
    Patent number: 4129517
    Abstract: A stable aqueous peroxy-containing concentrate containing by weight of the concentrate 1 to 60 percent of perglutaric acid; 1 to 50 percent of hydrogen peroxide; 0.01 to 2 percent of a stabilizing agent for the perglutaric acid and hydrogen peroxide; and the remainder to 100 percent water.
    Type: Grant
    Filed: November 28, 1977
    Date of Patent: December 12, 1978
    Assignee: Sterling Drug Inc.
    Inventors: Heinz Eggensperger, Wolfgang Beilfuss
  • 2,5-Bis(benzyloxy)tetrahydrofuran
    Patent number: 4059596
    Abstract: There is disclosed a method for controlling bacteria, fungi and spores which comprises applying thereto a 2,5-disubstituted-di (or tetra) hydrofuran, a process for preparation of such furans, and the novel compound 2,5-bis (benzyloxy) tetrahydrofuran.
    Type: Grant
    Filed: July 15, 1976
    Date of Patent: November 22, 1977
    Assignee: Sterling Drug Inc.
    Inventors: Heinz Eggensperger, Wolfgang Beilfuss, Helmut Hermann Ehlers
  • Disinfectant furans
    Patent number: 4004024
    Abstract: There is disclosed a method for controlling bacteria, fungi and spores which comprises applying thereto a bactericidally, fungicidally and sporicidally effective amount of a furan selected from 2-(R.sub.1 O)-5-(R.sub.2 O)-2,5-dihydrofuran and 2-(R.sub.1 O)-5-(R.sub.2 O)-tetrahydrofuran or mixtures thereof; a process for preparing a 2,5-bis(R.sub.1 O)-2,5-tetrahydrofuran and 2,5-bis(R.sub.1 O)-tetrahydrofuran; and novel 2,5-bis(benzyloxy)tetrahydrofuran.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: January 18, 1977
    Assignee: Sterling Drug Inc.
    Inventors: Heinz Eggensperger, Wolfgang Beilfuss, Helmut Hermann Ehlers