Patents by Inventor Benjamin W. Fisk

Benjamin W. Fisk 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).

  • High speed synchronization of plasma source/bias power delivery
    Patent number: 11935726
    Abstract: A radio frequency (RF) generator system includes first and second RF power sources, each RF power source applying a respective RF signal and second RF signal to a load. The first RF signal is applied in accordance with the application of the second RF signal. The application of the first RF signal is synchronized to application of the second RF signal. The first RF signal may be amplitude modulated in synchronization with the second RF signal, and the amplitude modulation can include blanking of the first RF signal. A frequency offset may be applied to the first RF signal in synchronization with the second RF signal. A variable actuator associated with the first RF power source may be controlled in accordance with the second RF signal.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: March 19, 2024
    Assignee: MKS Instruments, Inc.
    Inventors: Aaron T. Radomski, Benjamin J. Gitlin, Larry J. Fisk, II, Mariusz Oldziej, Aaron M. Burry, Jonathan W. Smyka, Alexei Marakhtanov, Bing Ji, Felix Leib Kozakevich, John Holland, Ranadeep Bhowmick
  • Method for optimizing a network having virtual circuit routing over virtual paths
    Patent number: 5274643
    Abstract: Virtual circuits are routed and grouped into virtual paths during an interactive topology design process. Virtual circuits are assigned to virtual paths that provide minimum cost to each pass through a topology design. Virtual paths are dispersed into subgroups that minimize bandwidth consumption and maximize routing flexibility. This topology optimization process is constrained to minimize use of network resources.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: December 28, 1993
    Assignee: Stratacom, Inc.
    Inventor: Benjamin W. Fisk