Patents by Inventor Klaus Stevens

Klaus Stevens 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).

  • PROLONGING OPTICAL ELEMENT LIFETIME IN AN EUV LITHOGRAPHY SYSTEM
    Publication number: 20240160109
    Abstract: Degradation of the reflectivity of one or more reflective optical elements in a system for generating EUV radiation is reduced by the controlled introduction of a gas into a vacuum chamber containing the optical element. The gas may be added to the flow of another gas such as hydrogen or alternated with the introduction of hydrogen radicals.
    Type: Application
    Filed: November 14, 2023
    Publication date: May 16, 2024
    Inventors: Yue Ma, Antonius Theodorus Wilhelmus Kempen, Klaus Martin Hummler, Johannes Hubertus Josephina Moors, Jeroen Hubert Rommers, Hubertus Johannes Van De Wiel, Andrew David Laforge, Fernando Brizuela, Rob Carlo Wieggers, Umesh Prasad Gomes, Elena Nedanovska, Celal Korkmaz, Alexander Downn Kim, Rui Miguel Duarte Rodrigues Nunes, Hendrikus Alphonsus Ludovicus Van Dijck, William Peter Van Drent, Peter Gerardus Jonkers, Qiushi Zhu, Parham Yaghoobi, Jan Steven Christiaan Westerlaken, Martinus Hendrikus Antonius Leenders, Alexander Igorevich Ershov, Igor Vladimirovich Fomenkov, Fei Liu, Johannes Henricus Wilhelmus Jacobs, Alexey Sergeevich Kuznetsov
  • Blood conditioning device
    Patent number: 7108785
    Abstract: A blood conditioning device having a housing with a helical blood acceleration section which includes a helical flow path for impressing centrifugal forces on the entrained bubbles in the blood to concentrate them towards the center of the flow path, a bubble pick off tube aligned with the centerline of the acceleration section which collects and recirculates the bubbles to the cardiotomy reservoir upstream of the device during operation, and a blood filtration section to intercept the flow of particles in the blood.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: September 19, 2006
    Assignee: Convergenza Handelsanstalt
    Inventors: Hans Plechinger, Hans-Jürgen Tiedtke, Klaus Stevens