CopyrightN.D. Cal.5:24-cv-08816

Cadence Design Systems, Inc. v. Suzhou TZTEK Technology Co., Ltd.

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Summary

Cadence Design Systems sues multiple Suzhou-based companies for copyright infringement of its design software.

Summary generated by AI from public docket data. Verify against the original filing before relying on it.

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Counsel of record

For the plaintiff
Court
U.S. District Court, Northern District of California
Docket no.
5:24-cv-08816
Nature of suit
Copyright
Judge
Eumi K. Lee
Filed
2024-12-06
Last filing
2026-09-11

Cause

17:501 Copyright Infringement

Entities in this case

Cadence Design SystemsSuzhou TZTEK Technology

Parties

Cadence Design Systems, Inc. (plaintiff) California TZTEK Technology LLC (defendant) HongKong TZTEK Technology Ltd. (defendant) Suzhou Tianzhun Xingzhi Technology Co., Ltd. (defendant) Suzhou Longyuan Software Co., Ltd. (defendant) Suzhou Tengchao Mechanical and Electrical Equipment Co., Ltd. (defendant) Suzhou Longshan Software Technology Co., Ltd. (defendant) Suzhou Tianzhun Software Co., Ltd. (defendant) Suzhou Tianzhun Technology Co., Ltd. (defendant)

Docket entries

  1. 2026-08-06

    Notice of Appearance/Substitution/Change/Withdrawal of Attorney

  2. 2026-07-29

    1 - Terminate Hearings AND Motion Hearing

  3. 2026-07-07

    Order AND ~Util - Set Deadlines

  4. 2026-06-02

    Notice of Appearance/Substitution/Change/Withdrawal of Attorney

  5. 2026-04-29

    Electronic Filing Error

  6. 2026-04-29

    Clerk's Notice of Entry of Default

  7. 2026-03-05

    Electronic Filing Error

  8. 2026-01-03

    Order on Motion to Withdraw as Attorney

  9. 2025-12-16

    Order AND ~Util - Set Deadlines

  10. 2025-09-13

    Order

  11. 2025-05-27

    1 - Terminate Hearings AND Clerk's Notice

  12. 2025-05-13

    Motion Hearing

  13. 2025-05-09

    Notice of Appearance/Substitution/Change/Withdrawal of Attorney

  14. 2025-05-06

    Clerk's Notice AND ~Util - Set Motion and Deadlines/Hearings

  15. 2025-02-27

    Case Referred to Private ADR

  16. 2025-02-26

    CASE REFERRED to Private ADR. (cmf, COURT STAFF) (Filed on 2/26/2025)

  17. 2024-12-27

    Clerk's Notice Setting Zoom Hearing

  18. 2024-12-19

    Clerk's Notice of Impending Reassignment - Text Only

  19. 2024-12-10

    Notice of Appearance/Substitution/Change/Withdrawal of Attorney

  20. 2024-12-09

    ~Util - Case Assigned by Intake

Docket history from CourtListener/RECAP — most recent first.

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View on CourtListener →Open in feed →Last updated 2026-09-13