Patents by Inventor Jurgen Staffeldt

Jurgen Staffeldt 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).

  • Patent number: 10364407
    Abstract: A kit for mechanically cleaning and/or disinfecting medical and/or surgical instruments and/or devices, the kit containing a first component containing at least 15 wt. % alkanolamine and at least 10 wt. % complexing agent, and a second component containing at least one enzyme; and a method of cleaning such instruments and devices using the components of the kit.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: July 30, 2019
    Assignee: CHEMISCHE FABRICK DR. WEIGERT GMBH & CO. KG
    Inventors: Iris Strodtholz, Petra Reessing, Jurgen Staffeldt
  • Publication number: 20160230126
    Abstract: The invention relates to a kit for mechanically cleaning and/or disinfecting medical and/or surgical instruments and/or devices, said kit containing a first component, which contains at least 15 wt.% alkcanolamine and at least 10 wt.% complexing agent, and a second component containing at least one enzyme. Said kit enables surgical and medical instruments to be cleaned and disinfected in an effective manner with very low quantities.
    Type: Application
    Filed: June 2, 2014
    Publication date: August 11, 2016
    Inventors: Iris Strodtholz, Petra Reessing, Jurgen Staffeldt
  • Patent number: 8142714
    Abstract: The invention relates to the use of a cleaning agent that contains surfactants and has a pH value of at least 11 when diluted in an aqueous solution and ready for use. Said cleaning agent is used to destabilize prions during mechanical and manual cleaning and/or disinfection of medical and/or surgical instruments and appliances. It has been recognized that this combination enables a reliable destabilization of prions during the mechanical reconditioning of surgical instruments.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: March 27, 2012
    Assignee: Chemische Fabrik Dr. Weigert GmbH & Co. KG
    Inventors: Petra Tiarks, Jurgen Staffeldt
  • Publication number: 20050079097
    Abstract: The invention relates to the use of a cleaning agent that contains surfactants and has a pH value of at least 11 when diluted in an aqueous solution and ready for use. Said cleaning agent is used to destabilize prions during mechanical and manual cleaning and/or disinfection of medical and/or surgical instruments and appliances. It has been recognized that this combination enables a reliable destabilization of prions during the mechanical reconditioning of surgical instruments.
    Type: Application
    Filed: January 28, 2002
    Publication date: April 14, 2005
    Inventors: Petra Tiarks, Jurgen Staffeldt
  • Patent number: 6562296
    Abstract: The present invention relates to the use of a cleaning composition concentrate in particular for the mechanical cleaning of medical and/or surgical instruments and/or apparatuses and to a process for carrying out this cleaning.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: May 13, 2003
    Assignee: Chemische Fabrik Dr. Weigert GmbH & Co. KG
    Inventors: Petra Tiarks, Jürgen Staffeldt
  • Patent number: 5810944
    Abstract: The invention relates to a cleanser concentrate having the following composition: 0.5-8.0% by weight of at least one C.sub.5 -C.sub.12 -alkyl sulphate salt, 4.0-15.0% by weight of at least one formulation aid, 4.0-10% by weight of at least one alkanolamine, and at least one commercially conventional proteolytic enzyme in an amount of 0.005-0.1 Anson and, if appropriate, conventional acids or bases for pH adjustment, conventional complexing agents and conventional preservatives, remainder, to 100% by weight, water. A process for cleaning surgical instruments has the following steps: applying a 0.5-100% strength aqueous solution of a cleanser concentrate according to one of claims 1-6 which has a pH of 8-9, allowing the solution to act at a temperature of room temperature to 55.degree. C. for a period of 2 s-20 min, rinsing, thermal disinfection, if appropriate.
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: September 22, 1998
    Assignee: Chemische Fabrik Dr. Weigert (GmbH & Co.)
    Inventors: Petra Smitkowski, Olaf Schreiber, Jurgen Staffeldt