patent term adjustment calculator - Aaron Graves, PhDude Replica

Application Filing Date:

Patent Issue Date:

A-Delay (USPTO Delay) Inputs

(Simplified for first office action and first subsequent action only)

Date of First Office Action (if > 14 months from filing):

Date of Applicant's Response to First OA:

Date of USPTO's Subsequent Action (e.g., 2nd OA, NOA if > 4 months from response):

Gross C-Delay (days, e.g., from successful appeal):

Total Days of Applicant Delay (e.g., RCE, IDS after NOA):

Patent Term Adjustment (PTA) Calculation:
A-Delay (USPTO Delay): 0 days
B-Delay (3-Year Rule): 0 days
C-Delay (Appellate Delay): 0 days
Gross PTA: 0 days
Applicant Delay: 0 days
Net Patent Term Adjustment: 0 days

What is Patent Term Adjustment (PTA)?

Patent Term Adjustment (PTA) is a mechanism under U.S. patent law designed to compensate patent applicants for certain delays incurred during the patent examination process at the United States Patent and Trademark Office (USPTO). Introduced by the American Inventors Protection Act of 1999 (AIPA) and later modified by the America Invents Act (AIA), PTA ensures that a patent's term is not unduly shortened due to administrative delays by the USPTO.

The standard term for a U.S. utility patent is 20 years from its earliest effective filing date. However, if the USPTO takes longer than statutory deadlines to process an application, PTA adds days to the patent's term, potentially extending its enforceability period.

The Three Types of PTA Delays (A, B, C)

PTA is generally calculated based on three primary categories of delay, often referred to as A-delay, B-delay, and C-delay.

A-Delay: Examination Delay

A-delay compensates for delays by the USPTO in meeting specific examination deadlines. These include:

Failing to issue a first Office Action or notice of allowance within 14 months of the application's filing date.
Failing to respond to an applicant's reply or appeal brief within 4 months.
Failing to issue a patent within 4 months of the payment of the issue fee.

Note on Calculator Simplification: Our calculator simplifies A-delay by focusing on the first instance of a 14-month delay for the first Office Action and a 4-month delay for the USPTO's subsequent action to the applicant's first response. Actual A-delay calculations can be cumulative and apply to multiple actions throughout prosecution.

B-Delay: 3-Year Pendency Delay

B-delay compensates for situations where a patent application takes longer than three years to issue from its actual filing date. If the patent does not issue within three years, the applicant is generally entitled to a day-for-day adjustment for each day beyond the three-year mark.

However, certain periods are excluded from this calculation, such as time consumed by Request for Continued Examination (RCE) proceedings, periods of appellate review, or delays due to secrecy orders.

C-Delay: Appellate Review Delay

C-delay compensates for delays caused by successful appellate review. If an applicant successfully appeals an examiner's rejection to the Patent Trial and Appeal Board (PTAB) or a federal court, the time consumed by this appeal process may be added to the patent term.

Note on Calculator Simplification: Our calculator uses a direct input for C-Delay days, as the precise calculation of appellate delay can be highly complex and depend on specific dates and outcomes of the appeal process.

Understanding Applicant Delay

While PTA aims to compensate for USPTO delays, it also accounts for delays caused by the applicant. Any period of time during which the applicant fails to engage in reasonable efforts to conclude prosecution or otherwise delays the processing or examination of the application will be subtracted from the total PTA accrued.

Common examples of applicant delay include:

Filing a Request for Continued Examination (RCE).
Filing an Information Disclosure Statement (IDS) after a Notice of Allowance.
Suspension of action at the applicant's request.
Failure to reply to a USPTO communication within three months.
Late payment of the issue fee.

It's crucial to manage prosecution strategically to minimize applicant-caused delays and maximize potential PTA.

How to Use Our PTA Calculator

This calculator provides an estimated Patent Term Adjustment based on the simplified rules outlined above. To use it:

Enter your application's Filing Date and the Patent Issue Date.
Provide dates for the First Office Action, Applicant's Response, and USPTO's Subsequent Action to estimate A-delay.
Input any known Gross C-Delay days (e.g., from a successful appeal).
Enter the Total Days of Applicant Delay you anticipate or have identified.
Click "Calculate PTA" to see the estimated A, B, C delays, Gross PTA, and Net Patent Term Adjustment.

Important Disclaimer

This Patent Term Adjustment calculator is provided for informational and estimation purposes only. The actual calculation of Patent Term Adjustment is governed by complex statutes and regulations, including 35 U.S.C. § 154(b) and 37 C.F.R. § 1.702 et seq., and involves numerous nuances, exceptions, and exclusions not captured by this simplified tool.

This calculator does not constitute legal advice, nor does it create an attorney-client relationship. For accurate PTA calculations and legal advice regarding your specific patent application, you should consult with a qualified patent attorney or agent.