Patents by Inventor Lev Kaufman

Lev Kaufman 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).

  • MECHANICAL CONVERTER FOR CONVERTING ROTARY MOTION TO RECIPROCATING MOTION
    Publication number: 20230175574
    Abstract: A mechanical converter for converting rotary motion to reciprocating motion, and vice versa, featuring a gear rack, one or more half-gears alternately engaged with the gear rack, the gear rack configured to produce reciprocating motion in response to the alternate engagement with the one or more half-gears.
    Type: Application
    Filed: February 2, 2023
    Publication date: June 8, 2023
    Inventors: Lev Kaufman, Solomon Kaufman
  • Mechanical converter for converting rotary motion to reciprocating motion
    Patent number: 11598398
    Abstract: A mechanical converter for converting rotary motion to reciprocating motion, and vice versa, featuring a gear rack, one or more half-gears alternately engaged with the gear rack, the gear rack configured to produce reciprocating motion in response to the alternate engagement with the one or more half-gears.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: March 7, 2023
    Inventors: Lev Kaufman, Solomon Kaufman
  • MECHANICAL CONVERTER FOR CONVERTING ROTARY MOTION TO RECIPROCATING MOTION
    Publication number: 20210033175
    Abstract: A mechanical converter for converting rotary motion to reciprocating motion, and vice versa, featuring a gear rack, one or more half-gears alternately engaged with the gear rack, the gear rack configured to produce reciprocating motion in response to the alternate engagement with the one or more half-gears.
    Type: Application
    Filed: July 31, 2020
    Publication date: February 4, 2021
    Inventors: Lev Kaufman, Solomon Kaufman
  • Delayed video-on-demand streaming for enhanced user experience and network capacity optimization
    Patent number: 9282355
    Abstract: A user device receives a video-on-demand (VOD) selection from a user and determines that current network streaming conditions are not adequate to provide high-quality VOD content. The user device presents an option, to the user, to delay presentation of the VOD content and receives a selection to delay presentation. Based on the selection to delay, the user device obtains the VOD content from a content delivery system and obtains encryption keys for the VOD content from a license server. In a manner transparent to the content delivery system, the user device stores the VOD content and encryption keys to create stored VOD content and stored encryption keys. The user device notifies the user that the VOD content is available to view and presents the stored VOD content using the stored encryption keys. The user device deletes the stored content and stored encryption keys per a VOD viewing policy.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: March 8, 2016
    Assignee: VERIZON PATENT AND LICENSING INC.
    Inventors: Alexander Tiraspolsky, Lev Kaufman
  • DELAYED VIDEO-ON-DEMAND STREAMING FOR ENHANCED USER EXPERIENCE AND NETWORK CAPACITY OPTIMIZATION
    Publication number: 20150326901
    Abstract: A user device receives a video-on-demand (VOD) selection from a user and determines that current network streaming conditions are not adequate to provide high-quality VOD content. The user device presents an option, to the user, to delay presentation of the VOD content and receives a selection to delay presentation. Based on the selection to delay, the user device obtains the VOD content from a content delivery system and obtains encryption keys for the VOD content from a license server. In a manner transparent to the content delivery system, the user device stores the VOD content and encryption keys to create stored VOD content and stored encryption keys. The user device notifies the user that the VOD content is available to view and presents the stored VOD content using the stored encryption keys. The user device deletes the stored content and stored encryption keys per a VOD viewing policy.
    Type: Application
    Filed: May 6, 2014
    Publication date: November 12, 2015
    Applicant: Verizon Patent and Licensing Inc.
    Inventors: Alexander Tiraspolsky, Lev Kaufman