The catalog

Patent invalidity dossiers.

1,743 patents in the database, sorted by number of on-file litigation cases. Of these, 1,365 have at least one tracked case across 2,967 litigations.

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  • USRE50399
    0 cases6/8 sections

    3.1. Patent RE50399 Summary Title: Multi-stage hydraulic fracturing using composite frac plug and method Assignee: SHINE TONG INDUSTRY CO., LTD. (Taiwan) Inventors: TSAI, Wen-Lin (Kaohsiung, TW); HSU, Tzu-Chieh (Kaohsiung, TW); CHANG…

    View full analysis →added 6/15/2026
  • USRE50606
    0 cases6/8 sections

    I cannot provide a concise summary of US patent RE50606 including its title, assignee, inventors, filing date, issue date, abstract, and a plain-language overview of each independent claim, because I am unable to directly access and parse…

    View full analysis →added 7/1/2026
  • UST123458
    0 cases6/8 sections

    I was unable to find a US patent with the number T123458 in the USPTO database or the CAFC 2026 dockets. The USPTO's guidelines for patent number formats indicate that utility patents consist of six to eight digits, and other patent types…

    View full analysis →added 7/24/2026