What is patent term adjustment?
Patent term adjustment (PTA) is additional time added to a patent’s term to compensate for delays in patent issuance caused by the United States Patent and Trademark Office (USPTO). The adjustment is governed by 35 U.S.C. 154(b) and is calculated based on various types of delays specified in the statute. As stated in MPEP 2731:…
Read MoreHow does the USPTO calculate the patent term adjustment period?
The USPTO calculates the patent term adjustment period based on several factors outlined in MPEP 2731. The calculation includes: Delays attributed to the USPTO (A delays) Delays due to interference proceedings, secrecy orders, or successful appellate review (B delays) Delays due to Request for Continued Examination (RCE) filings Overlapping days between A and B delays…
Read MoreWhat is the three-year pendency adjustment (B-delay) in patent term adjustment?
The three-year pendency adjustment, also known as B-delay, is a component of patent term adjustment that compensates applicants when patent issuance is delayed beyond three years from the actual filing date. According to MPEP 2731: “37 CFR 1.703(b) pertains to the provisions of 35 U.S.C. 154(b)(1)(B) and indicates that the period of adjustment under 37…
Read MoreHow does a terminal disclaimer affect patent term adjustment?
A terminal disclaimer can limit the effect of patent term adjustment (PTA). According to MPEP 2731: “37 CFR 1.703(g) indicates that no patent, the term of which has been disclaimed beyond a specified date, shall be adjusted under 37 CFR 1.702 and 1.703 beyond the expiration date specified in the disclaimer (35 U.S.C. 154(b)(2)(B)).“ This…
Read MoreHow does a successful appeal affect patent term adjustment?
A successful appeal can result in additional patent term adjustment (PTA). According to MPEP 2731: “37 CFR 1.703(e) pertains to the provisions of 35 U.S.C. 154(b)(1)(C)(iii) and indicates that the period of adjustment under 37 CFR 1.702(e) is the sum of the number of days, if any, in the period beginning on the date on…
Read MoreHow do secrecy orders affect patent term adjustment?
Secrecy orders can have a significant impact on patent term adjustment (PTA). According to MPEP 2731, there are several ways in which a secrecy order can affect PTA: “37 CFR 1.703(d) pertains to the provisions of 35 U.S.C. 154(b)(1)(C)(ii) and indicates that the period of adjustment under 37 CFR 1.702(d) is the sum of the…
Read MoreHow do RCE filings affect patent term adjustment?
Request for Continued Examination (RCE) filings can significantly impact patent term adjustment calculations. According to MPEP 2731: Time consumed by continued examination of the application requested by the applicant under 35 U.S.C. 132(b) is not included in the “B delay” three-year period The filing of an RCE within three years of the application’s actual filing…
Read MoreHow are overlapping delay periods handled in patent term adjustment calculations?
The handling of overlapping delay periods in patent term adjustment (PTA) calculations is addressed in MPEP 2731. The key principle is that the total PTA cannot exceed the actual number of days the issuance of the patent was delayed. Specifically: “37 CFR 1.703(f) indicates that the adjustment will run from the expiration date of the…
Read MoreHow do interference and derivation proceedings affect patent term adjustment?
Interference and derivation proceedings can impact patent term adjustment (PTA) in two ways, as outlined in MPEP 2731: They can create a basis for PTA under 35 U.S.C. 154(b)(1)(C)(i) They can reduce the amount of B-delay awarded under 35 U.S.C. 154(b)(1)(B)(ii) Regarding the first point, MPEP 2731 states: “37 CFR 1.703(c) pertains to the provisions…
Read MoreHow is the A-delay calculated for patent term adjustment?
The A-delay is calculated based on the USPTO’s failure to meet certain deadlines during patent prosecution. According to MPEP 2731, there are several components to the A-delay: Failure to issue a first Office action within 14 months of filing Failure to respond to a reply within 4 months Failure to act on an application within…
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