Patents by Inventor Zykin V. Ignatyevich

Zykin V. Ignatyevich 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).

  • Trawl fishing gear and trawl fishing method
    Patent number: 5444933
    Abstract: Trawl fishing gear characterized by providing net-mouth expanding bodies at respective predetermined positions near or upstream of upstream ends of respective wing portions of the trawl net. This adjusts the angle and/or surface area of the net-mouth expanding bodies. By connecting respective lifting ropes to the net-mouth expanding bodies which inturn apply pulling forces to variable action points for varying the angle and surface area against water flow.
    Type: Grant
    Filed: November 10, 1992
    Date of Patent: August 29, 1995
    Inventors: Hiromi Kinoshita, Yoshiki Matsushita, Yoshihiro Inoue, Zykin V. Ignatyevich, Kim I. Dmitrievich, Boitsov A. Nikolaevich, Visyagin O. Anatolyevich