Unified Patent Court procedure guides
When is the deadline for defence to the counterclaim for revocation (with any reply to the statement of defence and any application to amend the patent)?
Claimant or relevant patent proprietor uses 2 months to lodge a Defence to the Counterclaim for revocation, measured against service of a Statement of defence containing that counterclaim. Any Reply to the Statement of defence and any patent amendment application accompany this defence where applicable. The ordinary source period remains a conditional fixed boundary, not a variable period merely because this page withholds a calculation. This guide supplies no calculated final date.
- Period
- 2 months. Required conditional defence.
- Trigger
- service of a Statement of defence containing that counterclaim
- Rule
- UPC Rules of Procedure, amended text effective January 1, 2026, Rule 29(a)
Current UPC maintained legal index and amended Rules effective January 1, 2026, with February 2026 corrigendum retained. Agreement provisions are cross-checked against official original and maintained EPO representations. No complete worldwide amendment search or actual application acceptance is claimed.
Source guide · No automated date
Check the applicable procedure
This UPC Defence to a revocation counterclaim guide preserves the 2-months source period and its completion deadline nature. Any Reply to the Statement of defence and any patent amendment application accompany this defence where applicable. The actual event, applicable branch, court location and complete final-day conditions require confirmation. It supplies no computed date or paid calculation.
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When is the deadline for defence to the counterclaim for revocation (with any reply to the statement of defence and any application to amend the patent)?
Claimant or relevant patent proprietor uses 2 months to lodge a Defence to the Counterclaim for revocation, measured against service of a Statement of defence containing that counterclaim. Any Reply to the Statement of defence and any patent amendment application accompany this defence where applicable. The ordinary source period remains a conditional fixed boundary, not a variable period merely because this page withholds a calculation. This guide supplies no calculated final date.
Responsible actor. claimant or relevant patent proprietor. required conditional defence.
service of a Statement of defence containing that counterclaim
The served Statement of defence includes a Counterclaim for revocation
Any Reply to the Statement of defence and any patent amendment application accompany this defence where applicable.
This UPC Defence to a revocation counterclaim guide preserves the 2-months source period and its completion deadline nature. Any Reply to the Statement of defence and any patent amendment application accompany this defence where applicable. The actual event, applicable branch, court location and complete final-day conditions require confirmation. It supplies no computed date or paid calculation.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 29(a)How does this provision count time?
- lodge a Defence to the Counterclaim for revocation
- service of a Statement of defence containing that counterclaim
- For a procedural step, Rule 300 excludes the event day and uses calendar days, named-week anniversary or calendar-month/year anniversary with missing-day clamping. Judicial vacations do not suspend the period.
- Rule 301 extends a procedural expiry falling on a weekend or official holiday of the court location to its next working day. Electronic non-receipt is a separate material branch.
For a procedural step, Rule 300 excludes the event day and uses calendar days, named-week anniversary or calendar-month/year anniversary with missing-day clamping. Judicial vacations do not suspend the period.
Rule 301 extends a procedural expiry falling on a weekend or official holiday of the court location to its next working day. Electronic non-receipt is a separate material branch.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 29(a)Which facts prevent one automatic date?
This UPC Defence to a revocation counterclaim guide preserves the 2-months source period and its completion deadline nature. Any Reply to the Statement of defence and any patent amendment application accompany this defence where applicable. The actual event, applicable branch, court location and complete final-day conditions require confirmation. It supplies no computed date or paid calculation.
The identified actor has the document or event described by this source provision. service of a Statement of defence containing that counterclaim must be established. The served Statement of defence includes a Counterclaim for revocation. No final date is supplied without the applicable court location and complete facts.
A different order, actual service event or procedural track applies. Any Reply to the Statement of defence and any patent amendment application accompany this defence where applicable. Check that branch separately. Do not reuse another procedure's event or period.
A nominal period falls on a closed day or depends on another actual event. Rule 301 extends a procedural expiry falling on a weekend or official holiday of the court location to its next working day. Electronic non-receipt is a separate material branch. Preserve the stated source period. This guide does not infer a final case date.
Which conditions and exceptions apply?
- Actual operative event
- service of a Statement of defence containing that counterclaim
- Applicable procedural branch
- The served Statement of defence includes a Counterclaim for revocation Any Reply to the Statement of defence and any patent amendment application accompany this defence where applicable.
- Host-state calendar and complete act
- Rule 301 extends a procedural expiry falling on a weekend or official holiday of the court location to its next working day. Electronic non-receipt is a separate material branch.
- This UPC Defence to a revocation counterclaim guide preserves the 2-months source period and its completion deadline nature. Any Reply to the Statement of defence and any patent amendment application accompany this defence where applicable. The actual event, applicable branch, court location and complete final-day conditions require confirmation. It supplies no computed date or paid calculation.
- Claimant must distinguish correct the Statement of claim deficiencies under Rule 16.3(a), measured against service of the Registry correction notification. Its stated period is 14 days and its branch is required conditional correction. That event does not replace service of a Statement of defence containing that counterclaim for lodge a Defence to the Counterclaim for revocation. Claimant must distinguish pay the applicable infringement action fee under Rule 16.3(b), measured against service of the Registry payment notification. Its stated period is 14 days and its branch is required conditional payment. That event does not replace service of a Statement of defence containing that counterclaim for lodge a Defence to the Counterclaim for revocation. Defendant must distinguish lodge a Preliminary objection under Rule 19.1, measured against service of the Statement of claim. Its stated period is 1 months and its branch is optional objection right. That event does not replace service of a Statement of defence containing that counterclaim for lodge a Defence to the Counterclaim for revocation.
What must the responsible actor complete?
Questions about this procedure
When is the deadline for defence to the counterclaim for revocation (with any reply to the statement of defence and any application to amend the patent)?
Who acts on defence to the counterclaim for revocation (with any reply to the statement of defence and any application to amend the patent)?
Claimant or relevant patent proprietor is the relevant actor. The act is to lodge a Defence to the Counterclaim for revocation. This branch is required conditional defence.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 29(a)Which event starts the 2 months period?
The relevant event is service of a Statement of defence containing that counterclaim. The actual event must be established. A catalogue label or estimated event is insufficient.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 29(a)What does Rule 29(a) require here?
The primary provision identifies 2 months and the act to lodge a Defence to the Counterclaim for revocation. The served Statement of defence includes a Counterclaim for revocation.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 29(a)How do weekends and holidays affect this UPC branch?
For a procedural step, Rule 300 excludes the event day and uses calendar days, named-week anniversary or calendar-month/year anniversary with missing-day clamping. Judicial vacations do not suspend the period. Rule 301 extends a procedural expiry falling on a weekend or official holiday of the court location to its next working day. Electronic non-receipt is a separate material branch.
UPC Rules of Procedure, Rules 300 and 301What changes this defence to counterclaim revocation branch?
Any Reply to the Statement of defence and any patent amendment application accompany this defence where applicable. An actual order, party agreement or different procedural track requires a separate check.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 29(a)Which facts must be checked for defence to a revocation counterclaim?
Check the served statement of defence includes a counterclaim for revocation. Confirm service of a Statement of defence containing that counterclaim. Check the actual court location, applicable order and any permitted variation. Any Reply to the Statement of defence and any patent amendment application accompany this defence where applicable.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 29(a)Official sources and review
Provisions used (2)
| Provision | Purpose |
|---|---|
| UPC Rules of Procedure, amended text effective January 1, 2026, Rule 29(a) | Check the identified procedure, event, counting rule or qualification |
| UPC Rules of Procedure, Rules 300 and 301 | Check the identified procedure, event, counting rule or qualification |