Patents by Inventor Fernand Hoffstetter

Fernand Hoffstetter 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).

  • Fungicidal detergent compositions
    Patent number: 7987539
    Abstract: Disclosed is the use of the compound of formula wherein R1 is hydrogen; or C1-C5alkyl for the fungicidal treatment of hard surfaces and textile fiber materials. The compounds of formula (1) impart antifungal properties to washed textile material. Bacteria that get on the textile material while it is being worn are destroyed.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: August 2, 2011
    Assignee: BASF SE Ludwigshafen
    Inventors: Elizabeth Harumi Kobara Pestell, Marcel Schnyder, François Brugger, Fernand Hoffstetter
  • Fungicidal Detergent Compositions
    Publication number: 20080058393
    Abstract: Disclosed is the use of the compound of formula wherein R1 is hydrogen; or C1-C5alkyl for the fungicidal treatment of hard surfaces and textile fibre materials. The compounds of formula (1) impart antifungal properties to washed textile material. Bacteria that get on the textile material while it is being worn are destroyed.
    Type: Application
    Filed: March 14, 2005
    Publication date: March 6, 2008
    Inventors: Elizabeth Harumi Kobara Pestell, Marcel Schnyder, Francois Brugger, Fernand Hoffstetter
  • Biphenyl diquaternary ammonium compounds
    Patent number: 6730655
    Abstract: There are described diquaternary ammonium compounds of the general formula: wherein R1 and R4 are each independently of the other C4-C16alkyl, phenyl or phenyl-C1-C10 alkyl, R2, R3, R5 and R6 are each independently of the others C1-C4alkyl, and A is a monovalent anion. The compounds exhibit a pronounced action against gram-positive and gram-negative bacteria, and also against yeast, molds and algae. They are accordingly suitable for the antimicrobial treatment of surfaces and for the preservation and disinfection of materials and cosmetic products, and especially also for the preparation of solid or liquid formulations and for the preservation of foodstuffs and drinks. The compounds are furthermore suitable for imparting antimicrobial properties to technical plant and for antimicrobial water treatment.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: May 4, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Dieter Reinehr, Dietmar Ochs, Hanspeter Sauter, Fernand Hoffstetter
  • Surface-active preparations
    Patent number: 6620854
    Abstract: There are described surface-active soap compositions containing (a) from 0.01 to 2% by weight of an antimicrobial active ingredient from the class of diphenyl ethers, (b) from 0.1 to 30% by weight of a hydrotropic agent, (c) from 6.0 to 50% by weight of one or more synthetic detergents or soaps or a combination of such substances, (d) from 0 to 70% by weight of a monohydric or dihydric alcohol, and (e) tap water or deionised water ad 100%. The composition is used for disinfecting and cleaning human skin and hands and hard objects, and in washing and cleaning formulations for textile fibre materials.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: September 16, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Marcel Schnyder, François Brugger, Fernand Hoffstetter, Karin Mühlbauer, Karin Petzold, Radojka Vukomanovic
  • Diquaternary ammonium compounds
    Publication number: 20020061832
    Abstract: There are described diquaternary ammonium compounds of the general formula 1
    Type: Application
    Filed: September 19, 2001
    Publication date: May 23, 2002
    Inventors: Dieter Reinehr, Dietmar Ochs, Hanspeter Sauter, Fernand Hoffstetter
  • Surface-active preparations
    Publication number: 20020032241
    Abstract: There are described surface-active soap compositions containing
    Type: Application
    Filed: June 19, 2001
    Publication date: March 14, 2002
    Inventors: Marcel Schnyder, Francois Brugger, Fernand Hoffstetter, Karin Muhlbauer, Karin Petzold, Radojka Vukomanovic